#E3630B
Closest named color: Chocolate (#D2691E). oklch(65% 0.179 46.1), rgb(227, 99, 11).
Aa
Black text reads best on this color (6.05:1).
About this color
#E3630B is a medium-light, vivid orange. In OKLCH its lightness is 65%, its chroma 0.179 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate (#D2691E), ΔE 0.031 away. Black text reads best on it, at 6.05:1.
| Hue family | Oranges |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.179) |
| Temperature | warm |
| Nearest name | Chocolate (#D2691E) |
| Black text | 6.05:1 |
| White text | 3.46:1 |
Values
| HEX | #E3630B |
| RGB | rgb(227, 99, 11) |
| HSL | hsl(24, 91%, 47%) |
| OKLCH | oklch(65% 0.179 46.1) |
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 #E3630B | 3.46:1 | AA large text | Lc -66.9 | Content text, not long reading |
| Black text on #E3630B | 6.05:1 | AA | Lc 42.7 | Non-text elements, placeholder text |
| #E3630B text on white | 3.46:1 | AA large text | Lc 61.4 | Content text, not long reading |
| #E3630B text on black | 6.05:1 | AA | Lc -40.3 | 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
#F9E5DC
oklch(93.6% 0.025 45.9)
-
Step 200
200
#F6D0BF
oklch(88.5% 0.049 45.5)
-
Step 300
300
#F1AF91
oklch(80.9% 0.088 45.4)
-
Step 400
400
#E78250
oklch(70.8% 0.14 45.9)
-
Step 500
500 (this color)
#E3630B
oklch(65% 0.179 46.1)
-
Step 600
600
#B94E00
oklch(55.5% 0.156 46.2)
-
Step 700
700
#9D4100
oklch(49.2% 0.138 46.2)
-
Step 800
800
#813400
oklch(42.6% 0.119 46.2)
-
Step 900
900
#6D2B00
oklch(37.8% 0.106 46.3)
-
Step 950
950
#421801
oklch(27% 0.074 46.5)
#E3630B 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) | #887800 | 0.166 |
| Deuteranopia (no green cones) | #A79500 | 0.151 |
| Tritanopia (no blue cones) | #FA4355 | 0.096 |
| Achromatopsia (no color) | #8A8A8A | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E3630B
#E3630B
oklch(65% 0.179 46.1)
- #009DC9
#009DC9
oklch(64.9% 0.125 226.6)
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 #E3630B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate #D2691E ΔE 0.031
- Pumpkin #E17701 ΔE 0.043
- Deep Orange #DC4D01 ΔE 0.045
- Orange Pant #FB5607 ΔE 0.046
- Rust #CA6702 ΔE 0.046
- Browny Orange #CA6B02 ΔE 0.048
- Burnt Sienna #E76F51 ΔE 0.049
- Rusty Orange #CD5909 ΔE 0.049
Use #E3630B 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.