#E9664C
Closest named color: Burnt Sienna (#E76F51). oklch(66.8% 0.168 32.9), rgb(233, 102, 76).
Aa
Black text reads best on this color (6.46:1).
About this color
#E9664C is a medium-light, vivid red. In OKLCH its lightness is 67%, its chroma 0.168 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.017 away. Black text reads best on it, at 6.46:1.
| Hue family | Reds |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.168) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.46:1 |
| White text | 3.24:1 |
Values
| HEX | #E9664C |
| RGB | rgb(233, 102, 76) |
| HSL | hsl(10, 78%, 61%) |
| OKLCH | oklch(66.8% 0.168 32.9) |
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 #E9664C | 3.24:1 | AA large text | Lc -64.5 | Content text, not long reading |
| Black text on #E9664C | 6.46:1 | AA | Lc 45.0 | Large or bold text, headings |
| #E9664C text on white | 3.24:1 | AA large text | Lc 59.0 | Large or bold text, headings |
| #E9664C text on black | 6.46:1 | AA | Lc -42.7 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#F9E5E0
oklch(93.7% 0.023 34.3)
-
Step 200
200
#F6CFC6
oklch(88.5% 0.046 33.2)
-
Step 300
300
#F1AE9F
oklch(81% 0.082 33)
-
Step 400
400
#E6806A
oklch(70.7% 0.131 33.2)
-
Step 500
500 (this color)
#E9664C
oklch(66.8% 0.168 32.9)
-
Step 600
600
#C73A1E
oklch(55.5% 0.182 33.1)
-
Step 700
700
#AC2A10
oklch(49.1% 0.17 32.8)
-
Step 800
800
#8C2512
oklch(42.7% 0.142 32.6)
-
Step 900
900
#702517
oklch(37.7% 0.109 32.7)
-
Step 950
950
#42170E
oklch(27% 0.069 33.5)
#E9664C 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) | #897D49 | 0.171 |
| Deuteranopia (no green cones) | #A99A49 | 0.158 |
| Tritanopia (no blue cones) | #FF4B60 | 0.066 |
| Achromatopsia (no color) | #8F8F8F | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E9664C
#E9664C
oklch(66.8% 0.168 32.9)
- #00A7BF
#00A7BF
oklch(66.9% 0.117 212.6)
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 #E9664C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.017
- Tomato #FF6347 ΔE 0.040
- Grapefruit #FD5956 ΔE 0.044
- Pastel Red #DB5856 ΔE 0.046
- Orange Pink #FF6F52 ΔE 0.047
- Orange Pant #FB5607 ΔE 0.049
- Dark Peach #DE7E5D ΔE 0.050
- Coral Pink #FF6163 ΔE 0.050
Use #E9664C 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.