#E66B2C
Closest named color: Burnt Sienna (#E76F51). oklch(66.7% 0.17 44.4), rgb(230, 107, 44).
Aa
Black text reads best on this color (6.50:1).
About this color
#E66B2C is a medium-light, vivid orange. In OKLCH its lightness is 67%, its chroma 0.170 and its hue 44°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.032 away. Black text reads best on it, at 6.50:1.
| Hue family | Oranges |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.170) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.50:1 |
| White text | 3.22:1 |
Values
| HEX | #E66B2C |
| RGB | rgb(230, 107, 44) |
| HSL | hsl(20, 79%, 54%) |
| OKLCH | oklch(66.7% 0.17 44.4) |
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 #E66B2C | 3.22:1 | AA large text | Lc -64.3 | Content text, not long reading |
| Black text on #E66B2C | 6.50:1 | AA | Lc 45.2 | Large or bold text, headings |
| #E66B2C text on white | 3.22:1 | AA large text | Lc 58.9 | Large or bold text, headings |
| #E66B2C text on black | 6.50:1 | AA | Lc -42.9 | 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
#FCF3EF
oklch(97% 0.011 45.7)
-
Step 100
100
#F9E5DD
oklch(93.6% 0.025 43.2)
-
Step 200
200
#F4D0C1
oklch(88.4% 0.046 43.9)
-
Step 300
300
#EFB095
oklch(80.9% 0.083 44.2)
-
Step 400
400
#E48358
oklch(70.7% 0.133 44)
-
Step 500
500 (this color)
#E66B2C
oklch(66.7% 0.17 44.4)
-
Step 600
600
#BC4B00
oklch(55.6% 0.161 44.3)
-
Step 700
700
#9F3E00
oklch(49.1% 0.142 44.2)
-
Step 800
800
#833200
oklch(42.7% 0.123 44.4)
-
Step 900
900
#6E2900
oklch(37.7% 0.109 44.5)
-
Step 950
950
#411905
oklch(27% 0.069 44.7)
#E66B2C 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) | #8E7E22 | 0.158 |
| Deuteranopia (no green cones) | #AC9A28 | 0.144 |
| Tritanopia (no blue cones) | #FC4F5E | 0.089 |
| Achromatopsia (no color) | #8F8F8F | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E66B2C
#E66B2C
oklch(66.7% 0.17 44.4)
- #00A4CE
#00A4CE
oklch(66.8% 0.126 224.5)
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 #E66B2C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.032
- Pumpkin #E17701 ΔE 0.036
- Chocolate #D2691E ΔE 0.039
- Orange Pant #FB5607 ΔE 0.047
- Bright Orange #FF5B00 ΔE 0.048
- Dark Peach #DE7E5D ΔE 0.050
- Terracota #CB6843 ΔE 0.054
- Tomato #FF6347 ΔE 0.055
Use #E66B2C 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.