#E15A1B
Closest named color: Deep Orange (#DC4D01). oklch(63.5% 0.182 41.4), rgb(225, 90, 27).
Aa
Black text reads best on this color (5.67:1).
About this color
#E15A1B is a medium-light, vivid orange. In OKLCH its lightness is 64%, its chroma 0.182 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.027 away. Black text reads best on it, at 5.67:1.
| Hue family | Oranges |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.182) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.67:1 |
| White text | 3.69:1 |
Values
| HEX | #E15A1B |
| RGB | rgb(225, 90, 27) |
| HSL | hsl(19, 79%, 49%) |
| OKLCH | oklch(63.5% 0.182 41.4) |
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 #E15A1B | 3.69:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #E15A1B | 5.67:1 | AA | Lc 40.4 | Non-text elements, placeholder text |
| #E15A1B text on white | 3.69:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #E15A1B text on black | 5.67:1 | AA | Lc -38.0 | 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
#FDF3EF
oklch(97.1% 0.012 43.3)
-
Step 100
100
#FAE5DD
oklch(93.7% 0.026 42.1)
-
Step 200
200
#F7CFC0
oklch(88.5% 0.05 41.6)
-
Step 300
300
#F3AE94
oklch(81% 0.089 41.5)
-
Step 400
400
#E97F56
oklch(70.6% 0.142 41.4)
-
Step 500
500 (this color)
#E15A1B
oklch(63.5% 0.182 41.4)
-
Step 600
600
#C04600
oklch(55.6% 0.169 41.6)
-
Step 700
700
#A33900
oklch(49.1% 0.151 41.1)
-
Step 800
800
#862E00
oklch(42.6% 0.13 41.4)
-
Step 900
900
#712500
oklch(37.6% 0.115 41.2)
-
Step 950
950
#431604
oklch(26.9% 0.075 41)
#E15A1B 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) | #81720C | 0.178 |
| Deuteranopia (no green cones) | #A29012 | 0.160 |
| Tritanopia (no blue cones) | #F8374F | 0.086 |
| Achromatopsia (no color) | #858585 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E15A1B
#E15A1B
oklch(63.5% 0.182 41.4)
- #009ABD
#009ABD
oklch(63.6% 0.117 221.5)
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 #E15A1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.027
- Chocolate #D2691E ΔE 0.038
- Rusty Orange #CD5909 ΔE 0.040
- Terra Cotta #C9643B ΔE 0.046
- Terracotta #CA6641 ΔE 0.047
- Terracota #CB6843 ΔE 0.047
- Orange Pant #FB5607 ΔE 0.048
- Rust #CA6702 ΔE 0.050
Use #E15A1B 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.