#EF6166
Closest named color: Grapefruit (#FD5956). oklch(67.4% 0.175 21), rgb(239, 97, 102).
Aa
Black text reads best on this color (6.57:1).
About this color
#EF6166 is a medium-light, vivid red. In OKLCH its lightness is 67%, its chroma 0.175 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Grapefruit (#FD5956), ΔE 0.030 away. Black text reads best on it, at 6.57:1.
| Hue family | Reds |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.175) |
| Temperature | warm |
| Nearest name | Grapefruit (#FD5956) |
| Black text | 6.57:1 |
| White text | 3.19:1 |
Values
| HEX | #EF6166 |
| RGB | rgb(239, 97, 102) |
| HSL | hsl(358, 82%, 66%) |
| OKLCH | oklch(67.4% 0.175 21) |
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 #EF6166 | 3.19:1 | AA large text | Lc -63.8 | Content text, not long reading |
| Black text on #EF6166 | 6.57:1 | AA | Lc 45.7 | Large or bold text, headings |
| #EF6166 text on white | 3.19:1 | AA large text | Lc 58.4 | Large or bold text, headings |
| #EF6166 text on black | 6.57:1 | AA | Lc -43.4 | 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
#FFE2E1
oklch(93.6% 0.032 20.1)
-
Step 200
200
#FFCAC8
oklch(88.5% 0.061 20.9)
-
Step 300
300
#FFA4A2
oklch(80.9% 0.108 21.1)
-
Step 400
400 (this color)
#EF6166
oklch(67.4% 0.175 21)
-
Step 500
500
#F3334A
oklch(63.1% 0.224 20.9)
-
Step 600
600
#D70034
oklch(55.6% 0.223 21)
-
Step 700
700
#B6002A
oklch(49.1% 0.197 21.1)
-
Step 800
800
#970021
oklch(42.7% 0.172 21.2)
-
Step 900
900
#7D071C
oklch(37.6% 0.146 21.1)
-
Step 950
950
#4A0B11
oklch(27% 0.093 21.3)
#EF6166 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) | #847D65 | 0.189 |
| Deuteranopia (no green cones) | #A89B63 | 0.174 |
| Tritanopia (no blue cones) | #FF4764 | 0.046 |
| Achromatopsia (no color) | #909090 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF6166
#EF6166
oklch(67.4% 0.175 21)
- #00ABB3
#00ABB3
oklch(67.4% 0.115 200.7)
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 #EF6166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grapefruit #FD5956 ΔE 0.030
- Coral Pink #FF6163 ΔE 0.030
- Watermelon #FD4659 ΔE 0.043
- Burnt Sienna #E76F51 ΔE 0.045
- Light Red #FF474C ΔE 0.046
- Pastel Red #DB5856 ΔE 0.047
- Tomato #FF6347 ΔE 0.047
- Warm Pink #FB5581 ΔE 0.051
Use #EF6166 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.