#EF6F3F
Closest named color: Burnt Sienna (#E76F51). oklch(68.8% 0.17 40.2), rgb(239, 111, 63).
Aa
Black text reads best on this color (7.01:1).
About this color
#EF6F3F is a medium-light, vivid orange. In OKLCH its lightness is 69%, its chroma 0.170 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.022 away. Black text reads best on it, at 7.01:1.
| Hue family | Oranges |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.170) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 7.01:1 |
| White text | 2.99:1 |
Values
| HEX | #EF6F3F |
| RGB | rgb(239, 111, 63) |
| HSL | hsl(16, 85%, 59%) |
| OKLCH | oklch(68.8% 0.17 40.2) |
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 #EF6F3F | 2.99:1 | Fails | Lc -61.3 | Content text, not long reading |
| Black text on #EF6F3F | 7.01:1 | AAA | Lc 48.1 | Large or bold text, headings |
| #EF6F3F text on white | 2.99:1 | Fails | Lc 55.9 | Large or bold text, headings |
| #EF6F3F text on black | 7.01:1 | AAA | Lc -45.9 | 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
#FFF3EE
oklch(97.2% 0.015 44.2)
-
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)
#EF6F3F
oklch(68.8% 0.17 40.2)
-
Step 500
500
#E65100
oklch(63.1% 0.197 40.3)
-
Step 600
600
#C24300
oklch(55.5% 0.173 40.3)
-
Step 700
700
#A43700
oklch(49% 0.153 40.1)
-
Step 800
800
#882C00
oklch(42.7% 0.134 40.1)
-
Step 900
900
#722400
oklch(37.7% 0.117 40.3)
-
Step 950
950
#461300
oklch(26.9% 0.084 40.5)
#EF6F3F 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) | #928339 | 0.164 |
| Deuteranopia (no green cones) | #B2A03C | 0.150 |
| Tritanopia (no blue cones) | #FF5465 | 0.078 |
| Achromatopsia (no color) | #959595 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF6F3F
#EF6F3F
oklch(68.8% 0.17 40.2)
- #00ACD0
#00ACD0
oklch(68.8% 0.125 219.9)
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 #EF6F3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.022
- Pinkish Orange #FF724C ΔE 0.033
- Orange Pink #FF6F52 ΔE 0.035
- Tomato #FF6347 ΔE 0.037
- Melon #FF7855 ΔE 0.041
- Dark Peach #DE7E5D ΔE 0.042
- Bright Orange #FF5B00 ΔE 0.043
- Dusty Orange #F0833A ΔE 0.046
Use #EF6F3F 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.