#E00E10
Closest named color: Crimson (#DC143C). oklch(57.3% 0.23 28.6), rgb(224, 14, 16).
Aa
White text reads best on this color (4.95:1).
About this color
#E00E10 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.230 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.034 away. White text reads best on it, at 4.95:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.230) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.23:1 |
| White text | 4.95:1 |
Values
| HEX | #E00E10 |
| RGB | rgb(224, 14, 16) |
| HSL | hsl(359, 88%, 47%) |
| OKLCH | oklch(57.3% 0.23 28.6) |
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 #E00E10 | 4.95:1 | AA | Lc -77.1 | Fine for body text |
| Black text on #E00E10 | 4.23:1 | AA large text | Lc 32.4 | Non-text elements, placeholder text |
| #E00E10 text on white | 4.95:1 | AA | Lc 71.7 | Content text, not long reading |
| #E00E10 text on black | 4.23:1 | AA large text | Lc -30.0 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FDCCC4
oklch(88.6% 0.057 29)
-
Step 300
300
#FCA79B
oklch(80.9% 0.103 28.3)
-
Step 400
400
#F67263
oklch(70.7% 0.165 28.5)
-
Step 500
500
#EE4135
oklch(63.1% 0.211 28.6)
-
Step 600
600 (this color)
#E00E10
oklch(57.3% 0.23 28.6)
-
Step 700
700
#B80006
oklch(49.2% 0.201 28.5)
-
Step 800
800
#980004
oklch(42.7% 0.175 28.5)
-
Step 900
900
#7B130F
oklch(37.8% 0.139 28.4)
-
Step 950
950
#480F0B
oklch(27% 0.087 28.4)
#E00E10 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) | #605408 | 0.252 |
| Deuteranopia (no green cones) | #8F7F00 | 0.226 |
| Tritanopia (no blue cones) | #F80016 | 0.048 |
| Achromatopsia (no color) | #707070 | 0.232 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E00E10
#E00E10
oklch(57.3% 0.23 28.6)
- #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 #E00E10, closest first.
No curated palette has a color within ΔE 0.04 of #E00E10.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.034
- Tomato Red #EC2D01 ΔE 0.039
- Red Pantone #EF233C ΔE 0.046
- Cherry #CF0234 ΔE 0.047
- Cherry Red #F7022A ΔE 0.049
- Imperial Red #E63946 ΔE 0.051
- Vermillion #F4320C ΔE 0.055
- Fire Engine Red #FE0002 ΔE 0.060
Use #E00E10 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.