#EF6E40
Closest named color: Burnt Sienna (#E76F51). oklch(68.6% 0.171 39.5), rgb(239, 110, 64).
Aa
Black text reads best on this color (6.97:1).
About this color
#EF6E40 is a medium-light, vivid red. In OKLCH its lightness is 69%, its chroma 0.171 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.021 away. Black text reads best on it, at 6.97:1.
| Hue family | Reds |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.171) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.97:1 |
| White text | 3.01:1 |
Values
| HEX | #EF6E40 |
| RGB | rgb(239, 110, 64) |
| HSL | hsl(16, 85%, 59%) |
| OKLCH | oklch(68.6% 0.171 39.5) |
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 #EF6E40 | 3.01:1 | AA large text | Lc -61.5 | Content text, not long reading |
| Black text on #EF6E40 | 6.97:1 | AA | Lc 47.9 | Large or bold text, headings |
| #EF6E40 text on white | 3.01:1 | AA large text | Lc 56.2 | Large or bold text, headings |
| #EF6E40 text on black | 6.97:1 | AA | Lc -45.6 | 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
#FFF2EE
oklch(97% 0.015 37.9)
-
Step 100
100
#FDE4DB
oklch(93.7% 0.03 40.9)
-
Step 200
200
#FDCDBC
oklch(88.6% 0.059 40.4)
-
Step 300
300
#FCA98C
oklch(80.9% 0.106 40)
-
Step 400
400 (this color)
#EF6E40
oklch(68.6% 0.171 39.5)
-
Step 500
500
#E74F00
oklch(63% 0.2 39.6)
-
Step 600
600
#C44100
oklch(55.6% 0.177 39.3)
-
Step 700
700
#A53600
oklch(49% 0.155 39.6)
-
Step 800
800
#892B00
oklch(42.8% 0.136 39.4)
-
Step 900
900
#732300
oklch(37.7% 0.119 39.6)
-
Step 950
950
#471200
oklch(27% 0.086 39.4)
#EF6E40 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) | #91833B | 0.166 |
| Deuteranopia (no green cones) | #B19F3D | 0.151 |
| Tritanopia (no blue cones) | #FF5264 | 0.077 |
| Achromatopsia (no color) | #959595 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF6E40
#EF6E40
oklch(68.6% 0.171 39.5)
- #00ABCF
#00ABCF
oklch(68.6% 0.125 220)
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 #EF6E40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.021
- Pinkish Orange #FF724C ΔE 0.033
- Orange Pink #FF6F52 ΔE 0.035
- Tomato #FF6347 ΔE 0.035
- Melon #FF7855 ΔE 0.041
- Bright Orange #FF5B00 ΔE 0.042
- Dark Peach #DE7E5D ΔE 0.043
- Orange Pant #FB5607 ΔE 0.045
Use #EF6E40 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.