#E15B37
Closest named color: Pale Red (#D9544D). oklch(63.9% 0.175 35.9), rgb(225, 91, 55).
Aa
Black text reads best on this color (5.75:1).
About this color
#E15B37 is a medium-light, vivid red. In OKLCH its lightness is 64%, its chroma 0.175 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Pale Red (#D9544D), ΔE 0.035 away. Black text reads best on it, at 5.75:1.
| Hue family | Reds |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.175) |
| Temperature | warm |
| Nearest name | Pale Red (#D9544D) |
| Black text | 5.75:1 |
| White text | 3.65:1 |
Values
| HEX | #E15B37 |
| RGB | rgb(225, 91, 55) |
| HSL | hsl(13, 74%, 55%) |
| OKLCH | oklch(63.9% 0.175 35.9) |
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 #E15B37 | 3.65:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #E15B37 | 5.75:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #E15B37 text on white | 3.65:1 | AA large text | Lc 63.3 | Content text, not long reading |
| #E15B37 text on black | 5.75:1 | AA | Lc -38.4 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FAE5DF
oklch(93.7% 0.025 36.5)
-
Step 200
200
#F7CFC4
oklch(88.6% 0.048 35.9)
-
Step 300
300
#F2AD9B
oklch(80.8% 0.086 35.2)
-
Step 400
400
#E87F63
oklch(70.7% 0.136 35.9)
-
Step 500
500 (this color)
#E15B37
oklch(63.9% 0.175 35.9)
-
Step 600
600
#CA3701
oklch(55.6% 0.191 35.9)
-
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)
#E15B37 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) | #807332 | 0.177 |
| Deuteranopia (no green cones) | #A19133 | 0.162 |
| Tritanopia (no blue cones) | #F73B53 | 0.073 |
| Achromatopsia (no color) | #868686 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E15B37
#E15B37
oklch(63.9% 0.175 35.9)
- #009CB7
#009CB7
oklch(63.8% 0.113 215.8)
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 #E15B37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pale Red #D9544D ΔE 0.035
- Deep Orange #DC4D01 ΔE 0.035
- Pastel Red #DB5856 ΔE 0.038
- Terracota #CB6843 ΔE 0.043
- Terracotta #CA6641 ΔE 0.043
- Burnt Sienna #E76F51 ΔE 0.044
- Terra Cotta #C9643B ΔE 0.045
- Chocolate #D2691E ΔE 0.046
Use #E15B37 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.