#E66F43
Closest named color: Burnt Sienna (#E76F51). oklch(67.5% 0.159 40.2), rgb(230, 111, 67).
Aa
Black text reads best on this color (6.71:1).
About this color
#E66F43 is a medium-light, vivid orange. In OKLCH its lightness is 68%, its chroma 0.159 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.015 away. Black text reads best on it, at 6.71:1.
| Hue family | Oranges |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.159) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.71:1 |
| White text | 3.12:1 |
Values
| HEX | #E66F43 |
| RGB | rgb(230, 111, 67) |
| HSL | hsl(16, 77%, 58%) |
| OKLCH | oklch(67.5% 0.159 40.2) |
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 #E66F43 | 3.12:1 | AA large text | Lc -63.1 | Content text, not long reading |
| Black text on #E66F43 | 6.71:1 | AA | Lc 46.4 | Large or bold text, headings |
| #E66F43 text on white | 3.12:1 | AA large text | Lc 57.7 | Large or bold text, headings |
| #E66F43 text on black | 6.71:1 | AA | Lc -44.1 | 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 400.
-
Step 50
50
#FEF3EF
oklch(97.2% 0.013 41.2)
-
Step 100
100
#FCE4DC
oklch(93.6% 0.029 39.3)
-
Step 200
200
#FACEBE
oklch(88.5% 0.055 41)
-
Step 300
300
#F8AB8F
oklch(80.9% 0.099 40.8)
-
Step 400
400 (this color)
#E66F43
oklch(67.5% 0.159 40.2)
-
Step 500
500
#E65100
oklch(63.1% 0.197 40.3)
-
Step 600
600
#C24300
oklch(55.5% 0.173 40.3)
-
Step 700
700
#A43700
oklch(49% 0.153 40.1)
-
Step 800
800
#882C00
oklch(42.7% 0.134 40.1)
-
Step 900
900
#722400
oklch(37.7% 0.117 40.3)
-
Step 950
950
#461300
oklch(26.9% 0.084 40.5)
#E66F43 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) | #8F813E | 0.153 |
| Deuteranopia (no green cones) | #AC9C40 | 0.141 |
| Tritanopia (no blue cones) | #FC5765 | 0.077 |
| Achromatopsia (no color) | #929292 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E66F43
#E66F43
oklch(67.5% 0.159 40.2)
- #00A7CB
#00A7CB
oklch(67.4% 0.123 220.5)
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 #E66F43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.015
- Dark Peach #DE7E5D ΔE 0.035
- Pumpkin #E17701 ΔE 0.046
- Pinkish Orange #FF724C ΔE 0.048
- Tomato #FF6347 ΔE 0.048
- Orange Pink #FF6F52 ΔE 0.049
- Chocolate #D2691E ΔE 0.049
- Dusty Orange #F0833A ΔE 0.053
Use #E66F43 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.