#D9210B
Closest named color: Crimson (#DC143C). oklch(56.7% 0.217 30.6), rgb(217, 33, 11).
Aa
White text reads best on this color (5.03:1).
About this color
#D9210B is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.217 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.041 away. White text reads best on it, at 5.03:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.217) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #D9210B |
| RGB | rgb(217, 33, 11) |
| HSL | hsl(6, 90%, 45%) |
| OKLCH | oklch(56.7% 0.217 30.6) |
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 #D9210B | 5.03:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #D9210B | 4.17:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #D9210B text on white | 5.03:1 | AA | Lc 72.7 | Content text, not long reading |
| #D9210B text on black | 4.17:1 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FCE3DF
oklch(93.5% 0.028 28.5)
-
Step 200
200
#FBCDC4
oklch(88.6% 0.054 31)
-
Step 300
300
#F9A99A
oklch(80.9% 0.098 31)
-
Step 400
400
#F27663
oklch(70.7% 0.156 30.4)
-
Step 500
500
#E94935
oklch(63% 0.2 30.5)
-
Step 600
600 (this color)
#D9210B
oklch(56.7% 0.217 30.6)
-
Step 700
700
#B51200
oklch(49.1% 0.194 30.6)
-
Step 800
800
#950E01
oklch(42.6% 0.167 30.5)
-
Step 900
900
#781A0E
oklch(37.8% 0.13 30.9)
-
Step 950
950
#47120B
oklch(27.1% 0.082 30.6)
#D9210B 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) | #625500 | 0.235 |
| Deuteranopia (no green cones) | #8D7D00 | 0.210 |
| Tritanopia (no blue cones) | #F00020 | 0.047 |
| Achromatopsia (no color) | #6F6F6F | 0.219 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D9210B
#D9210B
oklch(56.7% 0.217 30.6)
- #008697
#008697
oklch(56.8% 0.098 210.3)
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 #D9210B, closest first.
No curated palette has a color within ΔE 0.04 of #D9210B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.041
- Tomato Red #EC2D01 ΔE 0.043
- Cherry #CF0234 ΔE 0.047
- Imperial Red #E63946 ΔE 0.055
- Red Pantone #EF233C ΔE 0.057
- Faded Red #D3494E ΔE 0.061
- Deep Orange #DC4D01 ΔE 0.061
- Vermillion #F4320C ΔE 0.061
Use #D9210B 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.