#EF584C
Closest named color: Grapefruit (#FD5956). oklch(65.9% 0.188 27.9), rgb(239, 88, 76).
Aa
Black text reads best on this color (6.17:1).
About this color
#EF584C is a medium-light, vivid red. In OKLCH its lightness is 66%, its chroma 0.188 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Grapefruit (#FD5956), ΔE 0.029 away. Black text reads best on it, at 6.17:1.
| Hue family | Reds |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.188) |
| Temperature | warm |
| Nearest name | Grapefruit (#FD5956) |
| Black text | 6.17:1 |
| White text | 3.40:1 |
Values
| HEX | #EF584C |
| RGB | rgb(239, 88, 76) |
| HSL | hsl(4, 84%, 62%) |
| OKLCH | oklch(65.9% 0.188 27.9) |
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 #EF584C | 3.40:1 | AA large text | Lc -66.0 | Content text, not long reading |
| Black text on #EF584C | 6.17:1 | AA | Lc 43.5 | Non-text elements, placeholder text |
| #EF584C text on white | 3.40:1 | AA large text | Lc 60.6 | Content text, not long reading |
| #EF584C text on black | 6.17:1 | 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
#FEF3F1
oklch(97.2% 0.012 29.9)
-
Step 100
100
#FBE4E0
oklch(93.6% 0.026 29.4)
-
Step 200
200
#F9CDC7
oklch(88.5% 0.051 27.2)
-
Step 300
300
#F6AAA0
oklch(80.8% 0.091 27.6)
-
Step 400
400
#EE796C
oklch(70.7% 0.147 27.9)
-
Step 500
500 (this color)
#EF584C
oklch(65.9% 0.188 27.9)
-
Step 600
600
#D02723
oklch(55.6% 0.204 27.9)
-
Step 700
700
#B41415
oklch(49.1% 0.191 27.9)
-
Step 800
800
#921715
oklch(42.7% 0.158 27.8)
-
Step 900
900
#751D18
oklch(37.6% 0.123 27.9)
-
Step 950
950
#45130F
oklch(26.9% 0.078 28)
#EF584C 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) | #81764A | 0.198 |
| Deuteranopia (no green cones) | #A79748 | 0.182 |
| Tritanopia (no blue cones) | #FF3456 | 0.057 |
| Achromatopsia (no color) | #8B8B8B | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF584C
#EF584C
oklch(65.9% 0.188 27.9)
- #00A5B6
#00A5B6
oklch(66% 0.113 207.7)
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 #EF584C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grapefruit #FD5956 ΔE 0.029
- Light Red #FF474C ΔE 0.035
- Pastel Red #DB5856 ΔE 0.039
- Orangey Red #FA4224 ΔE 0.040
- Tomato #FF6347 ΔE 0.041
- Watermelon #FD4659 ΔE 0.041
- Coral Pink #FF6163 ΔE 0.043
- Burnt Sienna #E76F51 ΔE 0.044
Use #EF584C 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.