#E15D37
Closest named color: Deep Orange (#DC4D01). oklch(64.1% 0.173 36.6), rgb(225, 93, 55).
Aa
Black text reads best on this color (5.82:1).
About this color
#E15D37 is a medium-light, vivid red. In OKLCH its lightness is 64%, its chroma 0.173 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.037 away. Black text reads best on it, at 5.82:1.
| Hue family | Reds |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.173) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.82:1 |
| White text | 3.60:1 |
Values
| HEX | #E15D37 |
| RGB | rgb(225, 93, 55) |
| HSL | hsl(13, 74%, 55%) |
| OKLCH | oklch(64.1% 0.173 36.6) |
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 #E15D37 | 3.60:1 | AA large text | Lc -68.3 | Content text, not long reading |
| Black text on #E15D37 | 5.82:1 | AA | Lc 41.2 | Non-text elements, placeholder text |
| #E15D37 text on white | 3.60:1 | AA large text | Lc 62.9 | Content text, not long reading |
| #E15D37 text on black | 5.82:1 | AA | Lc -38.8 | 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
#F6CFC4
oklch(88.5% 0.047 36.3)
-
Step 300
300
#F2AE9A
oklch(81% 0.085 37.1)
-
Step 400
400
#E87F62
oklch(70.7% 0.137 36.3)
-
Step 500
500 (this color)
#E15D37
oklch(64.1% 0.173 36.6)
-
Step 600
600
#C93900
oklch(55.6% 0.188 36.5)
-
Step 700
700
#AA2F00
oklch(49.1% 0.166 36.6)
-
Step 800
800
#8C2500
oklch(42.6% 0.144 36.6)
-
Step 900
900
#71250D
oklch(37.7% 0.113 37)
-
Step 950
950
#43170A
oklch(27.1% 0.072 37)
#E15D37 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) | #827432 | 0.173 |
| Deuteranopia (no green cones) | #A29233 | 0.159 |
| Tritanopia (no blue cones) | #F73E55 | 0.074 |
| Achromatopsia (no color) | #878787 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E15D37
#E15D37
oklch(64.1% 0.173 36.6)
- #009DB9
#009DB9
oklch(64.1% 0.114 216.4)
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 #E15D37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.037
- Pale Red #D9544D ΔE 0.038
- Pastel Red #DB5856 ΔE 0.040
- Burnt Sienna #E76F51 ΔE 0.041
- Terracota #CB6843 ΔE 0.042
- Terracotta #CA6641 ΔE 0.042
- Chocolate #D2691E ΔE 0.044
- Terra Cotta #C9643B ΔE 0.044
Use #E15D37 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.