#EF5666
Closest named color: Watermelon (#FD4659). oklch(66.1% 0.188 17.8), rgb(239, 86, 102).
Aa
Black text reads best on this color (6.19:1).
About this color
#EF5666 is a medium-light, vivid red. In OKLCH its lightness is 66%, its chroma 0.188 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Watermelon (#FD4659), ΔE 0.031 away. Black text reads best on it, at 6.19:1.
| Hue family | Reds |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.188) |
| Temperature | warm |
| Nearest name | Watermelon (#FD4659) |
| Black text | 6.19:1 |
| White text | 3.39:1 |
Values
| HEX | #EF5666 |
| RGB | rgb(239, 86, 102) |
| HSL | hsl(354, 83%, 64%) |
| OKLCH | oklch(66.1% 0.188 17.8) |
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 #EF5666 | 3.39:1 | AA large text | Lc -65.9 | Content text, not long reading |
| Black text on #EF5666 | 6.19:1 | AA | Lc 43.6 | Non-text elements, placeholder text |
| #EF5666 text on white | 3.39:1 | AA large text | Lc 60.4 | Content text, not long reading |
| #EF5666 text on black | 6.19:1 | AA | Lc -41.3 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FBE3E3
oklch(93.5% 0.026 17.6)
-
Step 200
200
#F9CCCD
oklch(88.4% 0.051 16.7)
-
Step 300
300
#F6A9AA
oklch(80.9% 0.091 18.4)
-
Step 400
400
#EE777E
oklch(70.8% 0.147 17.9)
-
Step 500
500 (this color)
#EF5666
oklch(66.1% 0.188 17.8)
-
Step 600
600
#CF2244
oklch(55.5% 0.204 17.6)
-
Step 700
700
#B30F35
oklch(49.1% 0.19 18)
-
Step 800
800
#91142D
oklch(42.6% 0.157 17.5)
-
Step 900
900
#751C28
oklch(37.8% 0.122 18)
-
Step 950
950
#451218
oklch(27% 0.078 17.3)
#EF5666 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) | #7C7766 | 0.205 |
| Deuteranopia (no green cones) | #A39762 | 0.189 |
| Tritanopia (no blue cones) | #FF375D | 0.044 |
| Achromatopsia (no color) | #8B8B8B | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF5666
#EF5666
oklch(66.1% 0.188 17.8)
- #00A7AB
#00A7AB
oklch(66.1% 0.112 197.8)
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 #EF5666, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Watermelon #FD4659 ΔE 0.031
- Paradise Pink #EF476F ΔE 0.031
- Grapefruit #FD5956 ΔE 0.035
- Light Red #FF474C ΔE 0.040
- Coral Pink #FF6163 ΔE 0.041
- Pastel Red #DB5856 ΔE 0.043
- Warm Pink #FB5581 ΔE 0.043
- Pale Red #D9544D ΔE 0.052
Use #EF5666 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.