#E3404D
Closest named color: Imperial Red (#E63946). oklch(61.4% 0.199 21.1), rgb(227, 64, 77).
Aa
Black text reads best on this color (5.10:1).
About this color
#E3404D is a medium-dark, vivid red. In OKLCH its lightness is 61%, its chroma 0.199 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.010 away. Black text reads best on it, at 5.10:1.
| Hue family | Reds |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.199) |
| Temperature | warm |
| Nearest name | Imperial Red (#E63946) |
| Black text | 5.10:1 |
| White text | 4.11:1 |
Values
| HEX | #E3404D |
| RGB | rgb(227, 64, 77) |
| HSL | hsl(355, 74%, 57%) |
| OKLCH | oklch(61.4% 0.199 21.1) |
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 #E3404D | 4.11:1 | AA large text | Lc -72.5 | Content text, not long reading |
| Black text on #E3404D | 5.10:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #E3404D text on white | 4.11:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #E3404D text on black | 5.10:1 | AA | Lc -34.7 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FBCCCA
oklch(88.5% 0.054 21.1)
-
Step 300
300
#F9A7A5
oklch(80.8% 0.098 21)
-
Step 400
400
#F27475
oklch(70.7% 0.155 21.4)
-
Step 500
500 (this color)
#E3404D
oklch(61.4% 0.199 21.1)
-
Step 600
600
#D41336
oklch(55.5% 0.216 21.1)
-
Step 700
700
#B6002A
oklch(49.1% 0.197 21.1)
-
Step 800
800
#950923
oklch(42.7% 0.167 21.1)
-
Step 900
900
#781721
oklch(37.7% 0.131 21.1)
-
Step 950
950
#471014
oklch(27% 0.083 20.8)
#E3404D 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) | #6E674C | 0.217 |
| Deuteranopia (no green cones) | #978A48 | 0.200 |
| Tritanopia (no blue cones) | #F90046 | 0.052 |
| Achromatopsia (no color) | #7D7D7D | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E3404D
#E3404D
oklch(61.4% 0.199 21.1)
- #00979E
#00979E
oklch(61.5% 0.105 200.6)
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 #E3404D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Red #E63946 ΔE 0.010
- Faded Red #D3494E ΔE 0.030
- Red Pantone #EF233C ΔE 0.033
- Pale Red #D9544D ΔE 0.035
- Pastel Red #DB5856 ΔE 0.038
- Dark Coral #CF524E ΔE 0.043
- Strawberry #FB2943 ΔE 0.046
- Red Pink #FA2A55 ΔE 0.047
Use #E3404D 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.