#E66366
Closest named color: Pastel Red (#DB5856). oklch(66.4% 0.163 21.3), rgb(230, 99, 102).
Aa
Black text reads best on this color (6.34:1).
About this color
#E66366 is a medium-light, vivid red. In OKLCH its lightness is 66%, its chroma 0.163 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Pastel Red (#DB5856), ΔE 0.035 away. Black text reads best on it, at 6.34:1.
| Hue family | Reds |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.163) |
| Temperature | warm |
| Nearest name | Pastel Red (#DB5856) |
| Black text | 6.34:1 |
| White text | 3.31:1 |
Values
| HEX | #E66366 |
| RGB | rgb(230, 99, 102) |
| HSL | hsl(359, 72%, 65%) |
| OKLCH | oklch(66.4% 0.163 21.3) |
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 #E66366 | 3.31:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #E66366 | 6.34:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #E66366 text on white | 3.31:1 | AA large text | Lc 59.8 | Large or bold text, headings |
| #E66366 text on black | 6.34:1 | AA | Lc -41.9 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#F9E4E3
oklch(93.5% 0.023 20.9)
-
Step 200
200
#F5CECC
oklch(88.4% 0.044 21.5)
-
Step 300
300
#F0ADAA
oklch(81% 0.079 21.8)
-
Step 400
400
#E57E7D
oklch(70.7% 0.128 21.4)
-
Step 500
500 (this color)
#E66366
oklch(66.4% 0.163 21.3)
-
Step 600
600
#C63843
oklch(55.6% 0.178 21.1)
-
Step 700
700
#AA2935
oklch(49% 0.165 21)
-
Step 800
800
#8A242C
oklch(42.6% 0.137 21.1)
-
Step 900
900
#6F2428
oklch(37.6% 0.106 20.8)
-
Step 950
950
#421617
oklch(27% 0.069 21.5)
#E66366 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) | #827C65 | 0.176 |
| Deuteranopia (no green cones) | #A39863 | 0.163 |
| Tritanopia (no blue cones) | #FA4D65 | 0.047 |
| Achromatopsia (no color) | #8D8D8D | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E66366
#E66366
oklch(66.4% 0.163 21.3)
- #00A7B0
#00A7B0
oklch(66.3% 0.113 201.6)
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 #E66366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Red #DB5856 ΔE 0.035
- Burnt Sienna #E76F51 ΔE 0.042
- Grapefruit #FD5956 ΔE 0.044
- Coral Pink #FF6163 ΔE 0.045
- Pale Red #D9544D ΔE 0.046
- Indian Red #CD5C5C ΔE 0.052
- Paradise Pink #EF476F ΔE 0.055
- Watermelon #FD4659 ΔE 0.055
Use #E66366 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.