#E10B3D
Closest named color: Crimson (#DC143C). oklch(57.8% 0.229 19.7), rgb(225, 11, 61).
Aa
White text reads best on this color (4.86:1).
About this color
#E10B3D is a medium-dark, vivid red. In OKLCH its lightness is 58%, its chroma 0.229 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.010 away. White text reads best on it, at 4.86:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.229) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.31:1 |
| White text | 4.86:1 |
Values
| HEX | #E10B3D |
| RGB | rgb(225, 11, 61) |
| HSL | hsl(346, 91%, 46%) |
| OKLCH | oklch(57.8% 0.229 19.7) |
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 #E10B3D | 4.86:1 | AA | Lc -76.6 | Fine for body text |
| Black text on #E10B3D | 4.31:1 | AA large text | Lc 32.9 | Non-text elements, placeholder text |
| #E10B3D text on white | 4.86:1 | AA | Lc 71.2 | Content text, not long reading |
| #E10B3D text on black | 4.31:1 | AA large text | Lc -30.5 | Non-text elements, placeholder text |
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
#FFF2F2
oklch(97.1% 0.014 17.4)
-
Step 100
100
#FDE2E2
oklch(93.5% 0.03 17.7)
-
Step 200
200
#FDCBCA
oklch(88.5% 0.057 19.6)
-
Step 300
300
#FCA6A5
oklch(80.9% 0.102 20.3)
-
Step 400
400
#F67075
oklch(70.7% 0.165 20)
-
Step 500
500
#ED3E52
oklch(63% 0.21 19.7)
-
Step 600
600 (this color)
#E10B3D
oklch(57.8% 0.229 19.7)
-
Step 700
700
#B6002E
oklch(49.1% 0.197 19.8)
-
Step 800
800
#970025
oklch(42.8% 0.172 19.6)
-
Step 900
900
#7A1121
oklch(37.7% 0.137 19.8)
-
Step 950
950
#480E14
oklch(27% 0.087 19.7)
#E10B3D 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) | #5D563D | 0.254 |
| Deuteranopia (no green cones) | #8E8036 | 0.231 |
| Tritanopia (no blue cones) | #F80027 | 0.050 |
| Achromatopsia (no color) | #717171 | 0.231 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E10B3D
#E10B3D
oklch(57.8% 0.229 19.7)
- #008B90
#008B90
oklch(57.8% 0.098 199.3)
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 #E10B3D, closest first.
No curated palette has a color within ΔE 0.04 of #E10B3D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.010
- Lipstick #D5174E ΔE 0.031
- Red Pantone #EF233C ΔE 0.036
- Cherry #CF0234 ΔE 0.039
- Imperial Red #E63946 ΔE 0.041
- Pink Red #F5054F ΔE 0.045
- Cherry Red #F7022A ΔE 0.048
- Cerise #DE0C62 ΔE 0.049
Use #E10B3D 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.