#DD1B21
Closest named color: Crimson (#DC143C). oklch(57.3% 0.222 27.1), rgb(221, 27, 33).
Aa
White text reads best on this color (4.93:1).
About this color
#DD1B21 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.222 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.027 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 | #DD1B21 |
| RGB | rgb(221, 27, 33) |
| HSL | hsl(358, 78%, 49%) |
| OKLCH | oklch(57.3% 0.222 27.1) |
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 #DD1B21 | 4.93:1 | AA | Lc -77.4 | Fine for body text |
| Black text on #DD1B21 | 4.25:1 | AA large text | Lc 32.1 | Non-text elements, placeholder text |
| #DD1B21 text on white | 4.93:1 | AA | Lc 72.0 | Content text, not long reading |
| #DD1B21 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
#FEF2F1
oklch(97% 0.013 23.2)
-
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
#FBA89E
oklch(81% 0.1 27)
-
Step 400
400
#F47468
oklch(70.8% 0.16 27.3)
-
Step 500
500
#EB453E
oklch(63% 0.204 27.2)
-
Step 600
600 (this color)
#DD1B21
oklch(57.3% 0.222 27.1)
-
Step 700
700
#B70011
oklch(49% 0.2 27.1)
-
Step 800
800
#97060F
oklch(42.8% 0.171 27.1)
-
Step 900
900
#791715
oklch(37.8% 0.133 27.2)
-
Step 950
950
#47100E
oklch(26.9% 0.084 26.6)
#DD1B21 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) | #61561E | 0.242 |
| Deuteranopia (no green cones) | #8E7F13 | 0.221 |
| Tritanopia (no blue cones) | #F40022 | 0.044 |
| Achromatopsia (no color) | #707070 | 0.224 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DD1B21
#DD1B21
oklch(57.3% 0.222 27.1)
- #008896
#008896
oklch(57.3% 0.098 207.5)
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 #DD1B21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.027
- Cherry #CF0234 ΔE 0.041
- Tomato Red #EC2D01 ΔE 0.042
- Red Pantone #EF233C ΔE 0.044
- Imperial Red #E63946 ΔE 0.046
- Cherry Red #F7022A ΔE 0.051
- Lipstick #D5174E ΔE 0.052
- Faded Red #D3494E ΔE 0.057
Use #DD1B21 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.