#CB410B
Closest named color: Brick Orange (#C14A09). oklch(56.9% 0.183 37.6), rgb(203, 65, 11).
Aa
White text reads best on this color (4.88:1).
About this color
#CB410B is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.183 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Orange (#C14A09), ΔE 0.023 away. White text reads best on it, at 4.88:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.183) |
| Temperature | warm |
| Nearest name | Brick Orange (#C14A09) |
| Black text | 4.30:1 |
| White text | 4.88:1 |
Values
| HEX | #CB410B |
| RGB | rgb(203, 65, 11) |
| HSL | hsl(17, 90%, 42%) |
| OKLCH | oklch(56.9% 0.183 37.6) |
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 #CB410B | 4.88:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #CB410B | 4.30:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #CB410B text on white | 4.88:1 | AA | Lc 72.6 | Content text, not long reading |
| #CB410B text on black | 4.30:1 | AA large text | Lc -29.0 | Dividers and decoration only |
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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#F9E5DF
oklch(93.6% 0.023 37.4)
-
Step 200
200
#F5CFC4
oklch(88.4% 0.046 36.7)
-
Step 300
300
#F0AF9B
oklch(81% 0.082 37.8)
-
Step 400
400
#E68163
oklch(70.8% 0.132 37.4)
-
Step 500
500
#DB5C35
oklch(63% 0.168 37.4)
-
Step 600
600 (this color)
#CB410B
oklch(56.9% 0.183 37.6)
-
Step 700
700
#A83100
oklch(49% 0.162 37.4)
-
Step 800
800
#8B2700
oklch(42.7% 0.141 37.5)
-
Step 900
900
#70260E
oklch(37.7% 0.11 37.4)
-
Step 950
950
#42180B
oklch(27.1% 0.069 37.6)
#CB410B 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) | #6B5D00 | 0.185 |
| Deuteranopia (no green cones) | #8C7C00 | 0.167 |
| Tritanopia (no blue cones) | #E00939 | 0.076 |
| Achromatopsia (no color) | #717171 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CB410B
#CB410B
oklch(56.9% 0.183 37.6)
- #00859E
#00859E
oklch(56.9% 0.102 217.2)
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 #CB410B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Orange #C14A09 ΔE 0.023
- Burnt Orange #C04E01 ΔE 0.030
- Sinopia #BB3E03 ΔE 0.034
- Rust Orange #C45508 ΔE 0.038
- Deep Orange #DC4D01 ΔE 0.043
- Rusty Orange #CD5909 ΔE 0.046
- Burnt Siena #B75203 ΔE 0.046
- Dull Red #BB3F3F ΔE 0.052
Use #CB410B 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.