#EC810B
Closest named color: Orange Wheel (#F77F00). oklch(70.8% 0.168 57.7), rgb(236, 129, 11).
Aa
Black text reads best on this color (7.71:1).
About this color
#EC810B is a medium-light, vivid orange. In OKLCH its lightness is 71%, its chroma 0.168 and its hue 58°. Its hue sits on the warm side of the wheel. The nearest named color is Orange Wheel (#F77F00), ΔE 0.019 away. Black text reads best on it, at 7.71:1.
| Hue family | Oranges |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.168) |
| Temperature | warm |
| Nearest name | Orange Wheel (#F77F00) |
| Black text | 7.71:1 |
| White text | 2.72:1 |
Values
| HEX | #EC810B |
| RGB | rgb(236, 129, 11) |
| HSL | hsl(31, 91%, 48%) |
| OKLCH | oklch(70.8% 0.168 57.7) |
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 #EC810B | 2.72:1 | Fails | Lc -57.4 | Large or bold text, headings |
| Black text on #EC810B | 7.71:1 | AAA | Lc 51.8 | Large or bold text, headings |
| #EC810B text on white | 2.72:1 | Fails | Lc 52.2 | Large or bold text, headings |
| #EC810B text on black | 7.71:1 | AAA | Lc -49.7 | Large or bold text, headings |
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 400.
-
Step 50
50
#FDF3ED
oklch(97% 0.013 53.4)
-
Step 100
100
#FAE5D7
oklch(93.5% 0.03 56)
-
Step 200
200
#F8D0B4
oklch(88.5% 0.059 56.9)
-
Step 300
300
#F4B07C
oklch(81% 0.104 58)
-
Step 400
400 (this color)
#EC810B
oklch(70.8% 0.168 57.7)
-
Step 500
500
#CB6D00
oklch(63% 0.151 57.6)
-
Step 600
600
#AC5B00
oklch(55.6% 0.134 57.3)
-
Step 700
700
#914C00
oklch(49.1% 0.118 57.5)
-
Step 800
800
#773E00
oklch(42.7% 0.102 58.2)
-
Step 900
900
#643300
oklch(37.7% 0.09 58)
-
Step 950
950
#3D1D00
oklch(27% 0.064 58.4)
#EC810B 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) | #A18E00 | 0.130 |
| Deuteranopia (no green cones) | #BBA609 | 0.117 |
| Tritanopia (no blue cones) | #FF686E | 0.113 |
| Achromatopsia (no color) | #9D9D9D | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EC810B
#EC810B
oklch(70.8% 0.168 57.7)
- #00ADF5
#00ADF5
oklch(70.9% 0.155 237.2)
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 #EC810B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orange Wheel #F77F00 ΔE 0.019
- Dusty Orange #F0833A ΔE 0.024
- Pumpkin Orange #FB7D07 ΔE 0.027
- Pumpkin #E17701 ΔE 0.032
- Dull Orange #D8863B ΔE 0.037
- Dark Orange #FF8C00 ΔE 0.044
- Faded Orange #F0944D ΔE 0.050
- Peru #CD853F ΔE 0.055
Use #EC810B 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.