#EF6566
Closest named color: Coral Pink (#FF6163). oklch(68% 0.171 22.3), rgb(239, 101, 102).
Aa
Black text reads best on this color (6.72:1).
About this color
#EF6566 is a medium-light, vivid red. In OKLCH its lightness is 68%, its chroma 0.171 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Coral Pink (#FF6163), ΔE 0.029 away. Black text reads best on it, at 6.72:1.
| Hue family | Reds |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.171) |
| Temperature | warm |
| Nearest name | Coral Pink (#FF6163) |
| Black text | 6.72:1 |
| White text | 3.12:1 |
Values
| HEX | #EF6566 |
| RGB | rgb(239, 101, 102) |
| HSL | hsl(360, 81%, 67%) |
| OKLCH | oklch(68% 0.171 22.3) |
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 #EF6566 | 3.12:1 | AA large text | Lc -62.9 | Content text, not long reading |
| Black text on #EF6566 | 6.72:1 | AA | Lc 46.5 | Large or bold text, headings |
| #EF6566 text on white | 3.12:1 | AA large text | Lc 57.5 | Large or bold text, headings |
| #EF6566 text on black | 6.72:1 | AA | Lc -44.2 | 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 400.
-
Step 50
50
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FEE2E0
oklch(93.5% 0.031 22.6)
-
Step 200
200
#FECAC7
oklch(88.4% 0.06 22.2)
-
Step 300
300
#FEA5A1
oklch(80.9% 0.106 22.5)
-
Step 400
400 (this color)
#EF6566
oklch(68% 0.171 22.3)
-
Step 500
500
#F13948
oklch(63.1% 0.218 22.2)
-
Step 600
600
#D7002F
oklch(55.5% 0.224 22.3)
-
Step 700
700
#B60026
oklch(49% 0.198 22.3)
-
Step 800
800
#97001E
oklch(42.7% 0.172 22.2)
-
Step 900
900
#7C0D1B
oklch(37.7% 0.142 22.4)
-
Step 950
950
#490C11
oklch(26.9% 0.09 21.7)
#EF6566 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) | #878065 | 0.183 |
| Deuteranopia (no green cones) | #A99D63 | 0.170 |
| Tritanopia (no blue cones) | #FF4C67 | 0.047 |
| Achromatopsia (no color) | #929292 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF6566
#EF6566
oklch(68% 0.171 22.3)
- #00ADB7
#00ADB7
oklch(68.1% 0.116 202.1)
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 #EF6566, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Coral Pink #FF6163 ΔE 0.029
- Grapefruit #FD5956 ΔE 0.031
- Burnt Sienna #E76F51 ΔE 0.040
- Tomato #FF6347 ΔE 0.044
- Orange Pink #FF6F52 ΔE 0.048
- Watermelon #FD4659 ΔE 0.050
- Pastel Red #DB5856 ΔE 0.050
- Light Red #FF474C ΔE 0.051
Use #EF6566 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.