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Federal Color Reference

Federal Sign Colors

This version is organized by material, not just by hue. Standard sign sheeting, fluorescent sign sheeting, pavement markings, and colored pavements all read differently in the field, so the page now shows those finishes as different surfaces instead of flattening everything into the same card.

Where the current FHWA SVG set provides a clean example, the cards use the actual sign artwork. Where the local set does not include a clean specimen, the page uses a purpose-built material plate instead.
20 Material Cards
4 Federal Sets
10 Color Tables
Built from the current eCFR appendix to 23 CFR part 655, subpart F, then remapped into material-driven visual specimens instead of plain table rows.
Open federal source
Table 1 · Table 1a · Table 2

Standard Retroreflective Signs

Prismatic or bead-based sign sheeting with a harder reflective face, metal-edge feel, and actual sign examples where the FHWA set provides them.

Daytime color, daytime luminance, and nighttime color limits for standard retroreflective sign materials.

WhiteYellowOrangeRedGreenBlueBrownPurple
Bicycle full lane sign
White
Bicycle full lane sign

White

Base field for regulatory panels, legends, and high-contrast message space.

Shown here as sign sheeting, not pavement paint.

Warning sign face
Yellow
Warning sign face

Yellow

Warning sign background for hazards, conditions, and advance caution.

Uses the FHWA yellow actually present in the current SVG set.

Work zone face
Orange
Work zone face

Orange

Temporary traffic control and work-zone sign background.

Uses the orange fill present in the FHWA work-zone SVG artwork.

WRONG WAY
Red
Retroreflective red field

Red

Prohibition, stop, wrong-way, and urgent restriction emphasis.

Rendered as a red sheeting specimen because the local SVG set does not include a clean full-red face example.

RECREATION AREA
Brown
Recreation guide field

Brown

Recreation, cultural-interest, and public-land wayfinding.

Rendered as a specimen plate because the current local SVG set does not include a clean brown-face example.

Guide sign face
Green
Guide sign face

Green

Destination, route, and general wayfinding sign background.

Uses the FHWA guide-sign green in the current SVG artwork.

Service sign face
Blue
Service sign face

Blue

Services, traveler information, and amenities.

Uses the blue present in the current FHWA service-sign SVGs.

ETC sign face
Purple
ETC sign face

Purple

Electronic toll collection, managed lanes, and specialty guidance.

Uses the ETC / toll purple present in the current sign set.

Table 3 · Table 3a · Table 4

Fluorescent Retroreflective Signs

Hotter sheeting with stronger edge glow and more aggressive punch than standard retroreflective sign faces.

Federal fluorescent color and luminance limits for high-conspicuity retroreflective sign materials.

Fluorescent Yellow-GreenFluorescent OrangeFluorescent YellowFluorescent GreenFluorescent Red
ROAD WORK
Fluorescent Orange
Fluorescent work-zone face

Fluorescent Orange

High-visibility fluorescent work-zone and temporary traffic control sign faces.

Shown as a fluorescent specimen so it reads hotter than the standard orange plate above.

SCHOOL
Fluorescent Yellow
Fluorescent school face

Fluorescent Yellow

High-conspicuity fluorescent warning and alert applications.

Shown as a pentagon specimen to keep the fluorescent material read primary.

School-area sign face
Fluorescent Yellow-Green
School-area sign face

Fluorescent Yellow-Green

Pedestrian, bicycle, school, and high-awareness sign applications.

Uses the yellow-green fill present in the current FHWA school-area SVG set.

ACTIVE ZONE
Fluorescent Green
Fluorescent green sheet

Fluorescent Green

Special fluorescent high-visibility applications.

Rendered as fluorescent sheeting because the local SVG set does not include a clean fluorescent-green sign-face example.

DANGER
Fluorescent Red
Fluorescent red sheet

Fluorescent Red

Special fluorescent high-visibility applications.

Rendered as fluorescent sheeting because the local SVG set does not include a clean fluorescent-red sign-face example.

Table 5 · Table 5a · Table 6

Retroreflective Pavement Markings

Stripe material shown on asphalt instead of sign metal so the finish reads like roadway marking paint or thermoplastic.

Federal daytime and nighttime color limits for retroreflective pavement marking materials.

WhiteYellowRedBluePurple
LANE LINE
White

White

Lane lines, shoulders, and standard longitudinal pavement markings.

Rendered as a roadway stripe instead of a sign face.

CENTER LINE
Yellow

Yellow

Centerline and opposing-direction separation markings.

Rendered as roadway marking material, not sign sheeting.

DO NOT ENTER
Red

Red

Wrong-way, opposing-movement, and entry-control pavement emphasis.

Deliberately shown on asphalt so it stops reading like a sign panel.

RESERVED
Blue

Blue

Special-purpose pavement marking applications.

Rendered as marking material, separate from blue service-sign sheeting.

TOLL LANE
Purple

Purple

Special-purpose pavement marking applications.

Rendered with a darker roadway finish, not a smooth sign plate.

Table 7

Colored Pavements

Aggregate surfacing shown as the pavement field itself instead of a stripe or a sign face.

Federal daytime color limits for non-retroreflective colored pavement materials.

RedGreen
TRANSIT SURFACE
Red

Red

Colored pavement applications where red surfacing is the visual field itself.

Rendered as aggregate pavement, not paint and not sign sheeting.

BIKE SURFACE
Green

Green

Colored pavement applications such as bicycle and active-transportation surfacing.

Rendered as aggregate pavement, not a guide-sign face.

Technical Standards

The eCFR source defines chromaticity and luminance ranges, not a single perfect screen hex. The material sections above are there to make the finishes legible visually, while these notes keep the federal references attached underneath.

Standard Retroreflective Signs: Table 1, Table 1a, Table 2

Daytime color, daytime luminance, and nighttime color limits for standard retroreflective sign materials.

Colors represented here: White, Yellow, Orange, Red, Green, Blue, Brown, Purple

Fluorescent Retroreflective Signs: Table 3, Table 3a, Table 4

Federal fluorescent color and luminance limits for high-conspicuity retroreflective sign materials.

Colors represented here: Fluorescent Yellow-Green, Fluorescent Orange, Fluorescent Yellow, Fluorescent Green, Fluorescent Red

Retroreflective Pavement Markings: Table 5, Table 5a, Table 6

Federal daytime and nighttime color limits for retroreflective pavement marking materials.

Colors represented here: White, Yellow, Red, Blue, Purple

Colored Pavements: Table 7

Federal daytime color limits for non-retroreflective colored pavement materials.

Colors represented here: Red, Green