#E83B31
Closest named color: Imperial Red (#E63946). oklch(61.5% 0.211 28.4), rgb(232, 59, 49).
Aa
Black text reads best on this color (5.10:1).
About this color
#E83B31 is a medium-dark, vivid red. In OKLCH its lightness is 61%, its chroma 0.211 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.023 away. Black text reads best on it, at 5.10:1.
| Hue family | Reds |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.211) |
| Temperature | warm |
| Nearest name | Imperial Red (#E63946) |
| Black text | 5.10:1 |
| White text | 4.11:1 |
Values
| HEX | #E83B31 |
| RGB | rgb(232, 59, 49) |
| HSL | hsl(3, 80%, 55%) |
| OKLCH | oklch(61.5% 0.211 28.4) |
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 #E83B31 | 4.11:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #E83B31 | 5.10:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #E83B31 text on white | 4.11:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #E83B31 text on black | 5.10:1 | AA | Lc -34.9 | 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 500.
-
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 (this color)
#E83B31
oklch(61.5% 0.211 28.4)
-
Step 600
600
#D9000B
oklch(55.6% 0.228 28.4)
-
Step 700
700
#B80007
oklch(49.2% 0.201 28.4)
-
Step 800
800
#980005
oklch(42.7% 0.175 28.4)
-
Step 900
900
#7A1410
oklch(37.7% 0.137 28.3)
-
Step 950
950
#480F0B
oklch(27% 0.087 28.4)
#E83B31 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) | #70652E | 0.226 |
| Deuteranopia (no green cones) | #9B8B29 | 0.206 |
| Tritanopia (no blue cones) | #FF003B | 0.053 |
| Achromatopsia (no color) | #7D7D7D | 0.212 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E83B31
#E83B31
oklch(61.5% 0.211 28.4)
- #0096A6
#0096A6
oklch(61.6% 0.106 208)
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 #E83B31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Red #E63946 ΔE 0.023
- Tomato Red #EC2D01 ΔE 0.024
- Vermillion #F4320C ΔE 0.028
- Red Pantone #EF233C ΔE 0.030
- Orangey Red #FA4224 ΔE 0.040
- Cherry Red #F7022A ΔE 0.040
- Pale Red #D9544D ΔE 0.043
- Strawberry #FB2943 ΔE 0.043
Use #E83B31 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.