#CD0137
Closest named color: Cherry (#CF0234). oklch(53.7% 0.215 19.3), rgb(205, 1, 55).
Aa
White text reads best on this color (5.74:1).
About this color
#CD0137 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.215 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.006 away. White text reads best on it, at 5.74:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.215) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #CD0137 |
| RGB | rgb(205, 1, 55) |
| HSL | hsl(344, 99%, 40%) |
| OKLCH | oklch(53.7% 0.215 19.3) |
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 #CD0137 | 5.74:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #CD0137 | 3.65:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #CD0137 text on white | 5.74:1 | AA | Lc 76.0 | Fine for body text |
| #CD0137 text on black | 3.65:1 | AA large text | Lc -25.7 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FBCCCB
oklch(88.6% 0.053 19.6)
-
Step 300
300
#F9A7A8
oklch(80.8% 0.097 18.6)
-
Step 400
400
#F17479
oklch(70.7% 0.154 19.4)
-
Step 500
500
#E84657
oklch(63% 0.198 19.2)
-
Step 600
600 (this color)
#CD0137
oklch(53.7% 0.215 19.3)
-
Step 700
700
#B60030
oklch(49.1% 0.197 19.1)
-
Step 800
800
#940A27
oklch(42.6% 0.165 19.4)
-
Step 900
900
#771824
oklch(37.7% 0.128 19.5)
-
Step 950
950
#461016
oklch(26.9% 0.082 18.4)
#CD0137 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) | #534D37 | 0.240 |
| Deuteranopia (no green cones) | #807330 | 0.217 |
| Tritanopia (no blue cones) | #E20020 | 0.049 |
| Achromatopsia (no color) | #666666 | 0.217 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CD0137
#CD0137
oklch(53.7% 0.215 19.3)
- #007E82
#007E82
oklch(53.9% 0.092 198.7)
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 #CD0137, closest first.
No curated palette has a color within ΔE 0.04 of #CD0137.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.006
- Ruby #CA0147 ΔE 0.022
- Lipstick Red #C0022F ΔE 0.028
- Lipstick #D5174E ΔE 0.033
- Rose Red #BE013C ΔE 0.033
- Crimson #DC143C ΔE 0.035
- Scarlet #BE0119 ΔE 0.042
- Dull Red #BB3F3F ΔE 0.058
Use #CD0137 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.