#EF6659
Closest named color: Burnt Sienna (#E76F51). oklch(67.9% 0.172 27.9), rgb(239, 102, 89).
Aa
Black text reads best on this color (6.71:1).
About this color
#EF6659 is a medium-light, vivid red. In OKLCH its lightness is 68%, its chroma 0.172 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.026 away. Black text reads best on it, at 6.71:1.
| Hue family | Reds |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.172) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.71:1 |
| White text | 3.12:1 |
Values
| HEX | #EF6659 |
| RGB | rgb(239, 102, 89) |
| HSL | hsl(5, 82%, 64%) |
| OKLCH | oklch(67.9% 0.172 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 #EF6659 | 3.12:1 | AA large text | Lc -63.0 | Content text, not long reading |
| Black text on #EF6659 | 6.71:1 | AA | Lc 46.5 | Large or bold text, headings |
| #EF6659 text on white | 3.12:1 | AA large text | Lc 57.6 | Large or bold text, headings |
| #EF6659 text on black | 6.71:1 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FEE3DE
oklch(93.6% 0.031 30.2)
-
Step 200
200
#FECBC3
oklch(88.5% 0.059 28.6)
-
Step 300
300
#FEA69A
oklch(80.9% 0.106 28.1)
-
Step 400
400 (this color)
#EF6659
oklch(67.9% 0.172 27.9)
-
Step 500
500
#F13B33
oklch(63% 0.219 28)
-
Step 600
600
#D90010
oklch(55.6% 0.227 27.9)
-
Step 700
700
#B8000B
oklch(49.2% 0.201 28)
-
Step 800
800
#980008
oklch(42.7% 0.175 27.8)
-
Step 900
900
#7C0E0D
oklch(37.6% 0.143 28)
-
Step 950
950
#490D0A
oklch(26.9% 0.09 27.9)
#EF6659 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) | #897F57 | 0.180 |
| Deuteranopia (no green cones) | #AB9D56 | 0.167 |
| Tritanopia (no blue cones) | #FF4B64 | 0.056 |
| Achromatopsia (no color) | #929292 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF6659
#EF6659
oklch(67.9% 0.172 27.9)
- #00ABBD
#00ABBD
oklch(67.8% 0.117 208)
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 #EF6659, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.026
- Grapefruit #FD5956 ΔE 0.030
- Tomato #FF6347 ΔE 0.033
- Coral Pink #FF6163 ΔE 0.033
- Orange Pink #FF6F52 ΔE 0.039
- Pinkish Orange #FF724C ΔE 0.046
- Pastel Red #DB5856 ΔE 0.051
- Light Red #FF474C ΔE 0.051
Use #EF6659 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.