#D40737
Closest named color: Cherry (#CF0234). oklch(55.2% 0.219 20.2), rgb(212, 7, 55).
Aa
White text reads best on this color (5.40:1).
About this color
#D40737 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.219 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.011 away. White text reads best on it, at 5.40:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.219) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.88:1 |
| White text | 5.40:1 |
Values
| HEX | #D40737 |
| RGB | rgb(212, 7, 55) |
| HSL | hsl(346, 94%, 43%) |
| OKLCH | oklch(55.2% 0.219 20.2) |
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 #D40737 | 5.40:1 | AA | Lc -79.8 | Fine for body text |
| Black text on #D40737 | 3.88:1 | AA large text | Lc 29.7 | Dividers and decoration only |
| #D40737 text on white | 5.40:1 | AA | Lc 74.4 | Content text, not long reading |
| #D40737 text on black | 3.88:1 | AA large text | Lc -27.3 | 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
#FDE3E2
oklch(93.7% 0.029 20.3)
-
Step 200
200
#FCCBCA
oklch(88.4% 0.056 19.6)
-
Step 300
300
#FAA7A6
oklch(80.9% 0.099 20.2)
-
Step 400
400
#F37376
oklch(70.7% 0.158 20.5)
-
Step 500
500
#EA4453
oklch(63.1% 0.202 20.3)
-
Step 600
600 (this color)
#D40737
oklch(55.2% 0.219 20.2)
-
Step 700
700
#B6002D
oklch(49.1% 0.197 20.1)
-
Step 800
800
#960524
oklch(42.8% 0.169 20.4)
-
Step 900
900
#781622
oklch(37.7% 0.131 20.3)
-
Step 950
950
#471014
oklch(27% 0.083 20.8)
#D40737 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) | #575036 | 0.244 |
| Deuteranopia (no green cones) | #857830 | 0.222 |
| Tritanopia (no blue cones) | #EA0022 | 0.049 |
| Achromatopsia (no color) | #6A6A6A | 0.221 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D40737
#D40737
oklch(55.2% 0.219 20.2)
- #008288
#008288
oklch(55.2% 0.094 200.5)
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 #D40737, closest first.
No curated palette has a color within ΔE 0.04 of #D40737.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.011
- Crimson #DC143C ΔE 0.019
- Lipstick #D5174E ΔE 0.027
- Ruby #CA0147 ΔE 0.031
- Lipstick Red #C0022F ΔE 0.043
- Rose Red #BE013C ΔE 0.048
- Scarlet #BE0119 ΔE 0.054
- Cerise #DE0C62 ΔE 0.058
Use #D40737 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.