#E55E3A
Closest named color: Burnt Sienna (#E76F51). oklch(64.9% 0.176 35.8), rgb(229, 94, 58).
Aa
Black text reads best on this color (5.99:1).
About this color
#E55E3A is a medium-light, vivid red. In OKLCH its lightness is 65%, its chroma 0.176 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.036 away. Black text reads best on it, at 5.99:1.
| Hue family | Reds |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.176) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 5.99:1 |
| White text | 3.50:1 |
Values
| HEX | #E55E3A |
| RGB | rgb(229, 94, 58) |
| HSL | hsl(13, 77%, 56%) |
| OKLCH | oklch(64.9% 0.176 35.8) |
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 #E55E3A | 3.50:1 | AA large text | Lc -67.3 | Content text, not long reading |
| Black text on #E55E3A | 5.99:1 | AA | Lc 42.3 | Non-text elements, placeholder text |
| #E55E3A text on white | 3.50:1 | AA large text | Lc 61.8 | Content text, not long reading |
| #E55E3A text on black | 5.99:1 | AA | Lc -39.9 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FAE4DF
oklch(93.5% 0.025 32.9)
-
Step 200
200
#F7CFC4
oklch(88.6% 0.048 35.9)
-
Step 300
300
#F2AD9A
oklch(80.8% 0.086 36)
-
Step 400
400
#E97F62
oklch(70.8% 0.138 36.2)
-
Step 500
500 (this color)
#E55E3A
oklch(64.9% 0.176 35.8)
-
Step 600
600
#CA3700
oklch(55.6% 0.191 36)
-
Step 700
700
#AB2D00
oklch(49.1% 0.169 35.9)
-
Step 800
800
#8D2300
oklch(42.6% 0.147 35.8)
-
Step 900
900
#72240E
oklch(37.8% 0.115 35.9)
-
Step 950
950
#43160A
oklch(26.9% 0.073 35.8)
#E55E3A 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) | #837635 | 0.178 |
| Deuteranopia (no green cones) | #A59436 | 0.161 |
| Tritanopia (no blue cones) | #FB3F56 | 0.073 |
| Achromatopsia (no color) | #898989 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E55E3A
#E55E3A
oklch(64.9% 0.176 35.8)
- #00A0BB
#00A0BB
oklch(65% 0.115 215.4)
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 #E55E3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.036
- Pale Red #D9544D ΔE 0.041
- Pastel Red #DB5856 ΔE 0.042
- Deep Orange #DC4D01 ΔE 0.044
- Orange Pant #FB5607 ΔE 0.044
- Terracota #CB6843 ΔE 0.048
- Chocolate #D2691E ΔE 0.049
- Terracotta #CA6641 ΔE 0.049
Use #E55E3A 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.