#CB383B
Closest named color: Dull Red (#BB3F3F). oklch(56.3% 0.184 24.3), rgb(203, 56, 59).
Aa
White text reads best on this color (5.03:1).
About this color
#CB383B is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.184 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.031 away. White text reads best on it, at 5.03:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.184) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 4.16:1 |
| White text | 5.03:1 |
Values
| HEX | #CB383B |
| RGB | rgb(203, 56, 59) |
| HSL | hsl(359, 59%, 51%) |
| OKLCH | oklch(56.3% 0.184 24.3) |
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 #CB383B | 5.03:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #CB383B | 4.16:1 | AA large text | Lc 30.6 | Non-text elements, placeholder text |
| #CB383B text on white | 5.03:1 | AA | Lc 73.5 | Content text, not long reading |
| #CB383B text on black | 4.16:1 | AA large text | Lc -28.2 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FAE4E2
oklch(93.6% 0.024 23.9)
-
Step 200
200
#F6CECA
oklch(88.4% 0.046 24.8)
-
Step 300
300
#F2ACA6
oklch(80.9% 0.083 24.6)
-
Step 400
400
#E77D77
oklch(70.6% 0.132 24.3)
-
Step 500
500
#DD5754
oklch(63.1% 0.169 24.5)
-
Step 600
600 (this color)
#CB383B
oklch(56.3% 0.184 24.3)
-
Step 700
700
#AD262B
oklch(49.2% 0.171 24.5)
-
Step 800
800
#8C2225
oklch(42.6% 0.141 24.2)
-
Step 900
900
#712323
oklch(37.8% 0.11 24.1)
-
Step 950
950
#421615
oklch(27% 0.069 24.1)
#CB383B 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) | #635B3A | 0.198 |
| Deuteranopia (no green cones) | #877A36 | 0.182 |
| Tritanopia (no blue cones) | #DF003B | 0.049 |
| Achromatopsia (no color) | #6F6F6F | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CB383B
#CB383B
oklch(56.3% 0.184 24.3)
- #008590
#008590
oklch(56.3% 0.096 205)
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 #CB383B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.031
- Faded Red #D3494E ΔE 0.036
- Dusty Red #B9484E ΔE 0.040
- Crimson #DC143C ΔE 0.042
- Cherry #CF0234 ΔE 0.042
- Dark Coral #CF524E ΔE 0.046
- Lipstick #D5174E ΔE 0.048
- Sinopia #BB3E03 ΔE 0.054
Use #CB383B 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.