#E66D53
Closest named color: Burnt Sienna (#E76F51). oklch(67.4% 0.156 33.6), rgb(230, 109, 83).
Aa
Black text reads best on this color (6.67:1).
About this color
#E66D53 is a medium-light, vivid red. In OKLCH its lightness is 67%, its chroma 0.156 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.006 away. Black text reads best on it, at 6.67:1.
| Hue family | Reds |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.156) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.67:1 |
| White text | 3.14:1 |
Values
| HEX | #E66D53 |
| RGB | rgb(230, 109, 83) |
| HSL | hsl(11, 75%, 61%) |
| OKLCH | oklch(67.4% 0.156 33.6) |
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 #E66D53 | 3.14:1 | AA large text | Lc -63.3 | Content text, not long reading |
| Black text on #E66D53 | 6.67:1 | AA | Lc 46.1 | Large or bold text, headings |
| #E66D53 text on white | 3.14:1 | AA large text | Lc 57.9 | Large or bold text, headings |
| #E66D53 text on black | 6.67:1 | AA | Lc -43.8 | 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FCE4DE
oklch(93.7% 0.028 34.3)
-
Step 200
200
#FBCDC2
oklch(88.5% 0.055 33.7)
-
Step 300
300
#F9AA97
oklch(81% 0.098 34.1)
-
Step 400
400 (this color)
#E66D53
oklch(67.4% 0.156 33.6)
-
Step 500
500
#E94B2A
oklch(63.1% 0.2 33.5)
-
Step 600
600
#CF2D00
oklch(55.6% 0.202 33.6)
-
Step 700
700
#AF2400
oklch(49.1% 0.179 33.5)
-
Step 800
800
#911C00
oklch(42.7% 0.156 33.4)
-
Step 900
900
#771B06
oklch(37.6% 0.13 33.6)
-
Step 950
950
#461207
oklch(26.9% 0.082 33.8)
#E66D53 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) | #8C8150 | 0.158 |
| Deuteranopia (no green cones) | #AA9B50 | 0.145 |
| Tritanopia (no blue cones) | #FB5667 | 0.064 |
| Achromatopsia (no color) | #919191 | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E66D53
#E66D53
oklch(67.4% 0.156 33.6)
- #00A9C2
#00A9C2
oklch(67.5% 0.118 213.1)
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 #E66D53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.006
- Dark Peach #DE7E5D ΔE 0.036
- Tomato #FF6347 ΔE 0.045
- Orange Pink #FF6F52 ΔE 0.046
- Pinkish Orange #FF724C ΔE 0.049
- Grapefruit #FD5956 ΔE 0.052
- Pastel Red #DB5856 ΔE 0.053
- Melon #FF7855 ΔE 0.054
Use #E66D53 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.