#DD1C1B
Closest named color: Crimson (#DC143C). oklch(57.3% 0.222 28.2), rgb(221, 28, 27).
Aa
White text reads best on this color (4.93:1).
About this color
#DD1C1B is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.222 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.031 away. White text reads best on it, at 4.93:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.222) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.25:1 |
| White text | 4.93:1 |
Values
| HEX | #DD1C1B |
| RGB | rgb(221, 28, 27) |
| HSL | hsl(0, 78%, 49%) |
| OKLCH | oklch(57.3% 0.222 28.2) |
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 #DD1C1B | 4.93:1 | AA | Lc -77.4 | Fine for body text |
| Black text on #DD1C1B | 4.25:1 | AA large text | Lc 32.1 | Non-text elements, placeholder text |
| #DD1C1B text on white | 4.93:1 | AA | Lc 71.9 | Content text, not long reading |
| #DD1C1B text on black | 4.25:1 | AA large text | Lc -29.7 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FCCCC5
oklch(88.5% 0.056 27.9)
-
Step 300
300
#FBA89C
oklch(81% 0.1 28.5)
-
Step 400
400
#F47466
oklch(70.7% 0.16 28.1)
-
Step 500
500
#EB453B
oklch(63% 0.204 28)
-
Step 600
600 (this color)
#DD1C1B
oklch(57.3% 0.222 28.2)
-
Step 700
700
#B80009
oklch(49.2% 0.201 28.2)
-
Step 800
800
#97060A
oklch(42.8% 0.171 28.1)
-
Step 900
900
#791713
oklch(37.7% 0.133 28)
-
Step 950
950
#47100C
oklch(26.9% 0.084 28.3)
#DD1C1B 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) | #615616 | 0.243 |
| Deuteranopia (no green cones) | #8F7F08 | 0.219 |
| Tritanopia (no blue cones) | #F40020 | 0.045 |
| Achromatopsia (no color) | #707070 | 0.224 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DD1C1B
#DD1C1B
oklch(57.3% 0.222 28.2)
- #008897
#008897
oklch(57.3% 0.099 208.4)
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 #DD1C1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.031
- Tomato Red #EC2D01 ΔE 0.040
- Cherry #CF0234 ΔE 0.044
- Red Pantone #EF233C ΔE 0.046
- Imperial Red #E63946 ΔE 0.047
- Cherry Red #F7022A ΔE 0.052
- Lipstick #D5174E ΔE 0.056
- Vermillion #F4320C ΔE 0.057
Use #DD1C1B 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.