#EF7137
Closest named color: Burnt Sienna (#E76F51). oklch(69% 0.171 43.2), rgb(239, 113, 55).
Aa
Black text reads best on this color (7.08:1).
About this color
#EF7137 is a medium-light, vivid orange. In OKLCH its lightness is 69%, its chroma 0.171 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.029 away. Black text reads best on it, at 7.08:1.
| Hue family | Oranges |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.171) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 7.08:1 |
| White text | 2.96:1 |
Values
| HEX | #EF7137 |
| RGB | rgb(239, 113, 55) |
| HSL | hsl(19, 85%, 58%) |
| OKLCH | oklch(69% 0.171 43.2) |
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 #EF7137 | 2.96:1 | Fails | Lc -60.9 | Content text, not long reading |
| Black text on #EF7137 | 7.08:1 | AAA | Lc 48.5 | Large or bold text, headings |
| #EF7137 text on white | 2.96:1 | Fails | Lc 55.5 | Large or bold text, headings |
| #EF7137 text on black | 7.08:1 | AAA | Lc -46.3 | 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
#FEF3EE
oklch(97.1% 0.014 46.2)
-
Step 100
100
#FDE4DA
oklch(93.6% 0.031 43.1)
-
Step 200
200
#FCCDBA
oklch(88.4% 0.059 43.1)
-
Step 300
300
#FBAA88
oklch(80.9% 0.107 43.6)
-
Step 400
400 (this color)
#EF7137
oklch(69% 0.171 43.2)
-
Step 500
500
#E15800
oklch(63.2% 0.187 43.1)
-
Step 600
600
#BE4900
oklch(55.6% 0.165 43.1)
-
Step 700
700
#A03D00
oklch(49.1% 0.144 43.5)
-
Step 800
800
#843100
oklch(42.7% 0.125 43.5)
-
Step 900
900
#6F2800
oklch(37.7% 0.111 43.6)
-
Step 950
950
#451500
oklch(27% 0.081 42.7)
#EF7137 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) | #94842F | 0.161 |
| Deuteranopia (no green cones) | #B3A134 | 0.147 |
| Tritanopia (no blue cones) | #FF5565 | 0.085 |
| Achromatopsia (no color) | #969696 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF7137
#EF7137
oklch(69% 0.171 43.2)
- #00ACD5
#00ACD5
oklch(69.1% 0.128 222.8)
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 #EF7137, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.029
- Pinkish Orange #FF724C ΔE 0.036
- Dusty Orange #F0833A ΔE 0.039
- Orange Pink #FF6F52 ΔE 0.040
- Pumpkin #E17701 ΔE 0.041
- Melon #FF7855 ΔE 0.043
- Tomato #FF6347 ΔE 0.043
- Bright Orange #FF5B00 ΔE 0.044
Use #EF7137 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.