#EA4737
Closest named color: Vermillion (#F4320C). oklch(63% 0.202 29.5), rgb(234, 71, 55).
Aa
Black text reads best on this color (5.45:1).
About this color
#EA4737 is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.202 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Vermillion (#F4320C), ΔE 0.031 away. Black text reads best on it, at 5.45:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.202) |
| Temperature | warm |
| Nearest name | Vermillion (#F4320C) |
| Black text | 5.45:1 |
| White text | 3.84:1 |
Values
| HEX | #EA4737 |
| RGB | rgb(234, 71, 55) |
| HSL | hsl(5, 81%, 57%) |
| OKLCH | oklch(63% 0.202 29.5) |
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 #EA4737 | 3.84:1 | AA large text | Lc -70.2 | Content text, not long reading |
| Black text on #EA4737 | 5.45:1 | AA | Lc 39.4 | Non-text elements, placeholder text |
| #EA4737 text on white | 3.84:1 | AA large text | Lc 64.7 | Content text, not long reading |
| #EA4737 text on black | 5.45:1 | AA | Lc -37.0 | 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
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FCCCC4
oklch(88.5% 0.056 29.2)
-
Step 300
300
#FAA89B
oklch(80.8% 0.099 29.3)
-
Step 400
400
#F37564
oklch(70.7% 0.158 29.5)
-
Step 500
500 (this color)
#EA4737
oklch(63% 0.202 29.5)
-
Step 600
600
#D6150B
oklch(55.6% 0.22 29.5)
-
Step 700
700
#B70400
oklch(49.1% 0.2 29.5)
-
Step 800
800
#960B05
oklch(42.7% 0.169 29.4)
-
Step 900
900
#781810
oklch(37.6% 0.132 29.5)
-
Step 950
950
#47110B
oklch(27% 0.084 29.8)
#EA4737 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) | #776B34 | 0.214 |
| Deuteranopia (no green cones) | #9F8F30 | 0.196 |
| Tritanopia (no blue cones) | #FF0045 | 0.065 |
| Achromatopsia (no color) | #828282 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EA4737
#EA4737
oklch(63% 0.202 29.5)
- #009AAD
#009AAD
oklch(62.9% 0.109 210.1)
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 #EA4737, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vermillion #F4320C ΔE 0.031
- Orangey Red #FA4224 ΔE 0.031
- Imperial Red #E63946 ΔE 0.032
- Tomato Red #EC2D01 ΔE 0.035
- Pale Red #D9544D ΔE 0.037
- Red Orange #FD3C06 ΔE 0.040
- Pastel Red #DB5856 ΔE 0.041
- Orangered #FE420F ΔE 0.042
Use #EA4737 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.