#E66766
Closest named color: Burnt Sienna (#E76F51). oklch(66.9% 0.159 22.8), rgb(230, 103, 102).
Aa
Black text reads best on this color (6.49:1).
About this color
#E66766 is a medium-light, vivid red. In OKLCH its lightness is 67%, its chroma 0.159 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.035 away. Black text reads best on it, at 6.49:1.
| Hue family | Reds |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.159) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.49:1 |
| White text | 3.23:1 |
Values
| HEX | #E66766 |
| RGB | rgb(230, 103, 102) |
| HSL | hsl(0, 72%, 65%) |
| OKLCH | oklch(66.9% 0.159 22.8) |
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 #E66766 | 3.23:1 | AA large text | Lc -64.4 | Content text, not long reading |
| Black text on #E66766 | 6.49:1 | AA | Lc 45.1 | Large or bold text, headings |
| #E66766 text on white | 3.23:1 | AA large text | Lc 59.0 | Large or bold text, headings |
| #E66766 text on black | 6.49:1 | AA | Lc -42.8 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FDE3E1
oklch(93.6% 0.029 23)
-
Step 200
200
#FCCCC8
oklch(88.6% 0.055 23.8)
-
Step 300
300
#FAA7A3
oklch(80.8% 0.099 22.5)
-
Step 400
400 (this color)
#E66766
oklch(66.9% 0.159 22.8)
-
Step 500
500
#EB444C
oklch(63.1% 0.203 22.7)
-
Step 600
600
#D60B2F
oklch(55.6% 0.22 22.7)
-
Step 700
700
#B70025
oklch(49.2% 0.198 22.7)
-
Step 800
800
#96041E
oklch(42.7% 0.17 22.5)
-
Step 900
900
#79161E
oklch(37.8% 0.133 22.6)
-
Step 950
950
#471012
oklch(27% 0.084 22.8)
#E66766 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) | #857F65 | 0.170 |
| Deuteranopia (no green cones) | #A59963 | 0.156 |
| Tritanopia (no blue cones) | #FA5268 | 0.048 |
| Achromatopsia (no color) | #8F8F8F | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E66766
#E66766
oklch(66.9% 0.159 22.8)
- #00A9B4
#00A9B4
oklch(66.9% 0.114 203)
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 #E66766, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.035
- Pastel Red #DB5856 ΔE 0.040
- Grapefruit #FD5956 ΔE 0.045
- Coral Pink #FF6163 ΔE 0.045
- Pale Red #D9544D ΔE 0.051
- Tomato #FF6347 ΔE 0.054
- Indian Red #CD5C5C ΔE 0.056
- Dark Peach #DE7E5D ΔE 0.056
Use #E66766 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.