#EF6B53
Closest named color: Burnt Sienna (#E76F51). oklch(68.4% 0.168 32.1), rgb(239, 107, 83).
Aa
Black text reads best on this color (6.89:1).
About this color
#EF6B53 is a medium-light, vivid red. In OKLCH its lightness is 68%, its chroma 0.168 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.016 away. Black text reads best on it, at 6.89:1.
| Hue family | Reds |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.168) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.89:1 |
| White text | 3.04:1 |
Values
| HEX | #EF6B53 |
| RGB | rgb(239, 107, 83) |
| HSL | hsl(9, 83%, 63%) |
| OKLCH | oklch(68.4% 0.168 32.1) |
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 #EF6B53 | 3.04:1 | AA large text | Lc -61.9 | Content text, not long reading |
| Black text on #EF6B53 | 6.89:1 | AA | Lc 47.5 | Large or bold text, headings |
| #EF6B53 text on white | 3.04:1 | AA large text | Lc 56.6 | Large or bold text, headings |
| #EF6B53 text on black | 6.89:1 | AA | Lc -45.2 | Large or bold text, headings |
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
#FEE3DD
oklch(93.6% 0.031 32.6)
-
Step 200
200
#FDCCC1
oklch(88.5% 0.058 32.8)
-
Step 300
300
#FDA796
oklch(80.9% 0.105 31.7)
-
Step 400
400 (this color)
#EF6B53
oklch(68.4% 0.168 32.1)
-
Step 500
500
#EF4124
oklch(63.1% 0.215 32)
-
Step 600
600
#D22500
oklch(55.6% 0.21 32.2)
-
Step 700
700
#B21D00
oklch(49.1% 0.186 32)
-
Step 800
800
#931600
oklch(42.7% 0.162 32)
-
Step 900
900
#7B1302
oklch(37.7% 0.14 32)
-
Step 950
950
#490F06
oklch(27.1% 0.089 32)
#EF6B53 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) | #8E8250 | 0.171 |
| Deuteranopia (no green cones) | #AE9F50 | 0.159 |
| Tritanopia (no blue cones) | #FF5166 | 0.062 |
| Achromatopsia (no color) | #949494 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF6B53
#EF6B53
oklch(68.4% 0.168 32.1)
- #00ACC4
#00ACC4
oklch(68.3% 0.119 212.1)
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 #EF6B53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.016
- Tomato #FF6347 ΔE 0.030
- Orange Pink #FF6F52 ΔE 0.032
- Pinkish Orange #FF724C ΔE 0.036
- Grapefruit #FD5956 ΔE 0.039
- Coral Pink #FF6163 ΔE 0.040
- Melon #FF7855 ΔE 0.043
- Dark Peach #DE7E5D ΔE 0.045
Use #EF6B53 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.