#D03129
Closest named color: Crimson (#DC143C). oklch(56.4% 0.197 28.3), rgb(208, 49, 41).
Aa
White text reads best on this color (5.05:1).
About this color
#D03129 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.197 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.040 away. White text reads best on it, at 5.05:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.197) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #D03129 |
| RGB | rgb(208, 49, 41) |
| HSL | hsl(3, 67%, 49%) |
| OKLCH | oklch(56.4% 0.197 28.3) |
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 #D03129 | 5.05:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #D03129 | 4.15:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #D03129 text on white | 5.05:1 | AA | Lc 73.4 | Content text, not long reading |
| #D03129 text on black | 4.15:1 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FBE4E0
oklch(93.6% 0.026 29.4)
-
Step 200
200
#F8CEC7
oklch(88.6% 0.049 29.1)
-
Step 300
300
#F5ABA1
oklch(80.9% 0.089 27.7)
-
Step 400
400
#EC7B6D
oklch(70.8% 0.142 28.5)
-
Step 500
500
#E25246
oklch(63.1% 0.181 28.1)
-
Step 600
600 (this color)
#D03129
oklch(56.4% 0.197 28.3)
-
Step 700
700
#B11D19
oklch(49.1% 0.183 28.2)
-
Step 800
800
#901D17
oklch(42.8% 0.151 28.5)
-
Step 900
900
#74201A
oklch(37.8% 0.119 28.2)
-
Step 950
950
#441410
oklch(26.9% 0.075 27.9)
#D03129 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) | #635826 | 0.211 |
| Deuteranopia (no green cones) | #8A7B21 | 0.192 |
| Tritanopia (no blue cones) | #E50031 | 0.047 |
| Achromatopsia (no color) | #6F6F6F | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D03129
#D03129
oklch(56.4% 0.197 28.3)
- #008593
#008593
oklch(56.4% 0.097 207.7)
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 #D03129, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.040
- Cherry #CF0234 ΔE 0.041
- Dull Red #BB3F3F ΔE 0.043
- Faded Red #D3494E ΔE 0.046
- Sinopia #BB3E03 ΔE 0.051
- Brick Orange #C14A09 ΔE 0.053
- Imperial Red #E63946 ΔE 0.054
- Dark Coral #CF524E ΔE 0.054
Use #D03129 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.