#E66859
Closest named color: Burnt Sienna (#E76F51). oklch(66.8% 0.16 28.9), rgb(230, 104, 89).
Aa
Black text reads best on this color (6.48:1).
About this color
#E66859 is a medium-light, vivid red. In OKLCH its lightness is 67%, its chroma 0.160 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.020 away. Black text reads best on it, at 6.48:1.
| Hue family | Reds |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.160) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.48:1 |
| White text | 3.23:1 |
Values
| HEX | #E66859 |
| RGB | rgb(230, 104, 89) |
| HSL | hsl(6, 74%, 63%) |
| OKLCH | oklch(66.8% 0.16 28.9) |
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 #E66859 | 3.23:1 | AA large text | Lc -64.4 | Content text, not long reading |
| Black text on #E66859 | 6.48:1 | AA | Lc 45.1 | Large or bold text, headings |
| #E66859 text on white | 3.23:1 | AA large text | Lc 59.0 | Large or bold text, headings |
| #E66859 text on black | 6.48:1 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F9E5E1
oklch(93.7% 0.023 31.1)
-
Step 200
200
#F5CFC9
oklch(88.5% 0.044 28.5)
-
Step 300
300
#EFAEA4
oklch(80.9% 0.078 28.7)
-
Step 400
400
#E48173
oklch(70.8% 0.125 29.1)
-
Step 500
500 (this color)
#E66859
oklch(66.8% 0.16 28.9)
-
Step 600
600
#C43D31
oklch(55.5% 0.174 28.9)
-
Step 700
700
#A92E24
oklch(49.1% 0.161 29)
-
Step 800
800
#89281F
oklch(42.6% 0.133 29.1)
-
Step 900
900
#6F261F
oklch(37.7% 0.105 28.5)
-
Step 950
950
#411813
oklch(27.1% 0.065 29.1)
#E66859 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) | #887E57 | 0.165 |
| Deuteranopia (no green cones) | #A79956 | 0.153 |
| Tritanopia (no blue cones) | #FB5165 | 0.057 |
| Achromatopsia (no color) | #8F8F8F | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E66859
#E66859
oklch(66.8% 0.16 28.9)
- #00A7BA
#00A7BA
oklch(66.7% 0.115 209)
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 #E66859, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.020
- Pastel Red #DB5856 ΔE 0.041
- Grapefruit #FD5956 ΔE 0.045
- Tomato #FF6347 ΔE 0.047
- Dark Peach #DE7E5D ΔE 0.048
- Coral Pink #FF6163 ΔE 0.048
- Pale Red #D9544D ΔE 0.049
- Orange Pink #FF6F52 ΔE 0.051
Use #E66859 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.