#E74837
Closest named color: Imperial Red (#E63946). oklch(62.6% 0.198 29.8), rgb(231, 72, 55).
Aa
Black text reads best on this color (5.37:1).
About this color
#E74837 is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.198 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.032 away. Black text reads best on it, at 5.37:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.198) |
| Temperature | warm |
| Nearest name | Imperial Red (#E63946) |
| Black text | 5.37:1 |
| White text | 3.90:1 |
Values
| HEX | #E74837 |
| RGB | rgb(231, 72, 55) |
| HSL | hsl(6, 79%, 56%) |
| OKLCH | oklch(62.6% 0.198 29.8) |
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 #E74837 | 3.90:1 | AA large text | Lc -70.7 | Content text, not long reading |
| Black text on #E74837 | 5.37:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #E74837 text on white | 3.90:1 | AA large text | Lc 65.2 | Content text, not long reading |
| #E74837 text on black | 5.37:1 | AA | Lc -36.4 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FCE3DF
oklch(93.5% 0.028 28.5)
-
Step 200
200
#FBCDC4
oklch(88.6% 0.054 31)
-
Step 300
300
#F9A99C
oklch(80.9% 0.097 29.5)
-
Step 400
400
#F27665
oklch(70.7% 0.156 29.5)
-
Step 500
500 (this color)
#E74837
oklch(62.6% 0.198 29.8)
-
Step 600
600
#D41C0E
oklch(55.5% 0.215 29.8)
-
Step 700
700
#B70800
oklch(49.2% 0.199 29.7)
-
Step 800
800
#951006
oklch(42.7% 0.166 29.9)
-
Step 900
900
#771A11
oklch(37.6% 0.129 29.8)
-
Step 950
950
#46120C
oklch(27% 0.081 29.8)
#E74837 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) | #766B34 | 0.210 |
| Deuteranopia (no green cones) | #9E8E31 | 0.192 |
| Tritanopia (no blue cones) | #FE0B45 | 0.066 |
| Achromatopsia (no color) | #818181 | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E74837
#E74837
oklch(62.6% 0.198 29.8)
- #0099AC
#0099AC
oklch(62.6% 0.108 210.2)
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 #E74837, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Red #E63946 ΔE 0.032
- Pale Red #D9544D ΔE 0.032
- Vermillion #F4320C ΔE 0.034
- Tomato Red #EC2D01 ΔE 0.036
- Orangey Red #FA4224 ΔE 0.036
- Pastel Red #DB5856 ΔE 0.038
- Deep Orange #DC4D01 ΔE 0.039
- Red Pantone #EF233C ΔE 0.045
Use #E74837 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.