#D90B1C
Closest named color: Crimson (#DC143C). oklch(56% 0.224 26.8), rgb(217, 11, 28).
Aa
White text reads best on this color (5.23:1).
About this color
#D90B1C is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.224 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.029 away. White text reads best on it, at 5.23:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.224) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.01:1 |
| White text | 5.23:1 |
Values
| HEX | #D90B1C |
| RGB | rgb(217, 11, 28) |
| HSL | hsl(355, 90%, 45%) |
| OKLCH | oklch(56% 0.224 26.8) |
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 #D90B1C | 5.23:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #D90B1C | 4.01:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #D90B1C text on white | 5.23:1 | AA | Lc 73.4 | Content text, not long reading |
| #D90B1C text on black | 4.01:1 | AA large text | Lc -28.3 | 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
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FDE3E0
oklch(93.6% 0.029 25.6)
-
Step 200
200
#FCCCC6
oklch(88.5% 0.055 26.5)
-
Step 300
300
#FBA79E
oklch(80.8% 0.101 26.2)
-
Step 400
400
#F57368
oklch(70.7% 0.162 26.9)
-
Step 500
500
#EC443E
oklch(63.1% 0.206 27)
-
Step 600
600 (this color)
#D90B1C
oklch(56% 0.224 26.8)
-
Step 700
700
#B70013
oklch(49% 0.2 26.8)
-
Step 800
800
#97020F
oklch(42.6% 0.172 26.7)
-
Step 900
900
#791515
oklch(37.6% 0.134 26.6)
-
Step 950
950
#48100E
oklch(27.1% 0.085 26.6)
#D90B1C 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) | #5C5118 | 0.247 |
| Deuteranopia (no green cones) | #8A7B0B | 0.223 |
| Tritanopia (no blue cones) | #F00018 | 0.046 |
| Achromatopsia (no color) | #6C6C6C | 0.226 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D90B1C
#D90B1C
oklch(56% 0.224 26.8)
- #008491
#008491
oklch(56.1% 0.096 206.9)
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 #D90B1C, closest first.
No curated palette has a color within ΔE 0.04 of #D90B1C.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.029
- Cherry #CF0234 ΔE 0.032
- Lipstick #D5174E ΔE 0.051
- Tomato Red #EC2D01 ΔE 0.054
- Red Pantone #EF233C ΔE 0.056
- Lipstick Red #C0022F ΔE 0.057
- Ruby #CA0147 ΔE 0.057
- Imperial Red #E63946 ΔE 0.058
Use #D90B1C 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.