#EF5566
Closest named color: Paradise Pink (#EF476F). oklch(66% 0.189 17.6), rgb(239, 85, 102).
Aa
Black text reads best on this color (6.16:1).
About this color
#EF5566 is a medium-light, vivid red. In OKLCH its lightness is 66%, its chroma 0.189 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Paradise Pink (#EF476F), ΔE 0.030 away. Black text reads best on it, at 6.16:1.
| Hue family | Reds |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.189) |
| Temperature | warm |
| Nearest name | Paradise Pink (#EF476F) |
| Black text | 6.16:1 |
| White text | 3.40:1 |
Values
| HEX | #EF5566 |
| RGB | rgb(239, 85, 102) |
| HSL | hsl(353, 83%, 64%) |
| OKLCH | oklch(66% 0.189 17.6) |
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 #EF5566 | 3.40:1 | AA large text | Lc -66.1 | Content text, not long reading |
| Black text on #EF5566 | 6.16:1 | AA | Lc 43.5 | Non-text elements, placeholder text |
| #EF5566 text on white | 3.40:1 | AA large text | Lc 60.6 | Content text, not long reading |
| #EF5566 text on black | 6.16:1 | AA | Lc -41.1 | 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
#F7A9AB
oklch(81% 0.092 17.6)
-
Step 400
400
#EE767E
oklch(70.7% 0.148 17.5)
-
Step 500
500 (this color)
#EF5566
oklch(66% 0.189 17.6)
-
Step 600
600
#D02144
oklch(55.6% 0.205 17.6)
-
Step 700
700
#B30D36
oklch(49% 0.191 17.4)
-
Step 800
800
#92132D
oklch(42.8% 0.159 17.5)
-
Step 900
900
#751B28
oklch(37.7% 0.123 17.6)
-
Step 950
950
#451218
oklch(27% 0.078 17.3)
#EF5566 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 | 0.206 |
| Deuteranopia (no green cones) | #A39762 | 0.190 |
| Tritanopia (no blue cones) | #FF365C | 0.044 |
| Achromatopsia (no color) | #8B8B8B | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF5566
#EF5566
oklch(66% 0.189 17.6)
- #00A7AA
#00A7AA
oklch(66.1% 0.112 197)
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 #EF5566, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Paradise Pink #EF476F ΔE 0.030
- Watermelon #FD4659 ΔE 0.031
- Grapefruit #FD5956 ΔE 0.036
- Light Red #FF474C ΔE 0.039
- Coral Pink #FF6163 ΔE 0.042
- Warm Pink #FB5581 ΔE 0.043
- Pastel Red #DB5856 ΔE 0.043
- Red Pink #FA2A55 ΔE 0.052
Use #EF5566 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.