#EC4E37
Closest named color: Orangey Red (#FA4224). oklch(64% 0.198 31.2), rgb(236, 78, 55).
Aa
Black text reads best on this color (5.71:1).
About this color
#EC4E37 is a medium-light, vivid red. In OKLCH its lightness is 64%, its chroma 0.198 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Orangey Red (#FA4224), ΔE 0.028 away. Black text reads best on it, at 5.71:1.
| Hue family | Reds |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.198) |
| Temperature | warm |
| Nearest name | Orangey Red (#FA4224) |
| Black text | 5.71:1 |
| White text | 3.67:1 |
Values
| HEX | #EC4E37 |
| RGB | rgb(236, 78, 55) |
| HSL | hsl(8, 83%, 57%) |
| OKLCH | oklch(64% 0.198 31.2) |
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 #EC4E37 | 3.67:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #EC4E37 | 5.71:1 | AA | Lc 40.9 | Non-text elements, placeholder text |
| #EC4E37 text on white | 3.67:1 | AA large text | Lc 63.2 | Content text, not long reading |
| #EC4E37 text on black | 5.71:1 | AA | Lc -38.5 | 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
#FCE4DF
oklch(93.7% 0.027 31.7)
-
Step 200
200
#FBCDC4
oklch(88.6% 0.054 31)
-
Step 300
300
#F9A99A
oklch(80.9% 0.098 31)
-
Step 400
400
#F17762
oklch(70.7% 0.154 31.3)
-
Step 500
500 (this color)
#EC4E37
oklch(64% 0.198 31.2)
-
Step 600
600
#D41E00
oklch(55.6% 0.215 31.2)
-
Step 700
700
#B41700
oklch(49.2% 0.191 31.1)
-
Step 800
800
#951100
oklch(42.8% 0.166 31.1)
-
Step 900
900
#771B0E
oklch(37.7% 0.128 31.3)
-
Step 950
950
#46120A
oklch(26.9% 0.081 31.5)
#EC4E37 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) | #7C6F33 | 0.207 |
| Deuteranopia (no green cones) | #A39231 | 0.189 |
| Tritanopia (no blue cones) | #FF1B4A | 0.067 |
| Achromatopsia (no color) | #858585 | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EC4E37
#EC4E37
oklch(64% 0.198 31.2)
- #009EB3
#009EB3
oklch(64.1% 0.111 211.2)
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 #EC4E37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orangey Red #FA4224 ΔE 0.028
- Vermillion #F4320C ΔE 0.036
- Orangered #FE420F ΔE 0.037
- Red Orange #FD3C06 ΔE 0.037
- Pale Red #D9544D ΔE 0.039
- Blood Orange #FE4B03 ΔE 0.040
- Orange Red #FF4500 ΔE 0.040
- Pastel Red #DB5856 ΔE 0.041
Use #EC4E37 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.