#CC571B
Closest named color: Rusty Orange (#CD5909). oklch(59.9% 0.163 43.3), rgb(204, 87, 27).
Aa
Black text reads best on this color (4.94:1).
About this color
#CC571B is a medium-dark, vivid orange. In OKLCH its lightness is 60%, its chroma 0.163 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Orange (#CD5909), ΔE 0.009 away. Black text reads best on it, at 4.94:1.
| Hue family | Oranges |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.163) |
| Temperature | warm |
| Nearest name | Rusty Orange (#CD5909) |
| Black text | 4.94:1 |
| White text | 4.24:1 |
Values
| HEX | #CC571B |
| RGB | rgb(204, 87, 27) |
| HSL | hsl(20, 77%, 45%) |
| OKLCH | oklch(59.9% 0.163 43.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #CC571B | 4.24:1 | AA large text | Lc -74.0 | Content text, not long reading |
| Black text on #CC571B | 4.94:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #CC571B text on white | 4.24:1 | AA large text | Lc 68.5 | Content text, not long reading |
| #CC571B text on black | 4.94:1 | AA | Lc -33.1 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F8E5DE
oklch(93.5% 0.023 41.4)
-
Step 200
200
#F4D0C2
oklch(88.4% 0.045 42.4)
-
Step 300
300
#EEB097
oklch(80.9% 0.081 42.9)
-
Step 400
400
#E2845C
oklch(70.6% 0.128 43.4)
-
Step 500
500 (this color)
#CC571B
oklch(59.9% 0.163 43.3)
-
Step 600
600
#BD4900
oklch(55.5% 0.164 43.3)
-
Step 700
700
#A03D00
oklch(49.1% 0.144 43.5)
-
Step 800
800
#843100
oklch(42.7% 0.125 43.5)
-
Step 900
900
#6E2905
oklch(37.7% 0.107 42.9)
-
Step 950
950
#411907
oklch(27.1% 0.068 42.9)
#CC571B with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #796A0F | 0.155 |
| Deuteranopia (no green cones) | #958515 | 0.142 |
| Tritanopia (no blue cones) | #E03A4C | 0.083 |
| Achromatopsia (no color) | #7B7B7B | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CC571B
#CC571B
oklch(59.9% 0.163 43.3)
- #008DB0
#008DB0
oklch(59.7% 0.112 223.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #CC571B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Orange #CD5909 ΔE 0.009
- Rust Orange #C45508 ΔE 0.018
- Terra Cotta #C9643B ΔE 0.029
- Deep Orange #DC4D01 ΔE 0.031
- Burnt Orange #C04E01 ΔE 0.032
- Terracotta #CA6641 ΔE 0.036
- Brick Orange #C14A09 ΔE 0.036
- Rust #CA6702 ΔE 0.038
Use #CC571B in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.