#CB4F2A
Closest named color: Rust Orange (#C45508). oklch(58.7% 0.166 36.8), rgb(203, 79, 42).
Aa
Black text reads best on this color (4.69:1).
About this color
#CB4F2A is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.166 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.028 away. Black text reads best on it, at 4.69:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.166) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.69:1 |
| White text | 4.47:1 |
Values
| HEX | #CB4F2A |
| RGB | rgb(203, 79, 42) |
| HSL | hsl(14, 66%, 48%) |
| OKLCH | oklch(58.7% 0.166 36.8) |
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 #CB4F2A | 4.47:1 | AA large text | Lc -75.7 | Fine for body text |
| Black text on #CB4F2A | 4.69:1 | AA | Lc 33.9 | Non-text elements, placeholder text |
| #CB4F2A text on white | 4.47:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #CB4F2A text on black | 4.69:1 | AA | Lc -31.5 | 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 600.
-
Step 50
50
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E0
oklch(93.6% 0.022 35.1)
-
Step 200
200
#F3D0C6
oklch(88.4% 0.042 36.5)
-
Step 300
300
#ECB09F
oklch(80.8% 0.075 36.4)
-
Step 400
400
#E0846A
oklch(70.6% 0.12 36.6)
-
Step 500
500
#D56241
oklch(63.1% 0.153 36.8)
-
Step 600
600 (this color)
#CB4F2A
oklch(58.7% 0.166 36.8)
-
Step 700
700
#A53510
oklch(49% 0.154 36.8)
-
Step 800
800
#862D12
oklch(42.6% 0.128 36.6)
-
Step 900
900
#6C2A17
oklch(37.7% 0.099 36.7)
-
Step 950
950
#40190E
oklch(27% 0.064 36.6)
#CB4F2A 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) | #726625 | 0.167 |
| Deuteranopia (no green cones) | #918125 | 0.151 |
| Tritanopia (no blue cones) | #DF3048 | 0.070 |
| Achromatopsia (no color) | #777777 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CB4F2A
#CB4F2A
oklch(58.7% 0.166 36.8)
- #008BA5
#008BA5
oklch(58.7% 0.105 217.1)
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 #CB4F2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.028
- Brick Orange #C14A09 ΔE 0.029
- Burnt Orange #C04E01 ΔE 0.031
- Rusty Orange #CD5909 ΔE 0.031
- Deep Orange #DC4D01 ΔE 0.035
- Dark Coral #CF524E ΔE 0.037
- Terra Cotta #C9643B ΔE 0.041
- Pale Red #D9544D ΔE 0.045
Use #CB4F2A 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.