#EF951F
Closest named color: Gamboge (#EE9B00). oklch(74.6% 0.159 65.8), rgb(239, 149, 31).
Aa
Black text reads best on this color (8.98:1).
About this color
#EF951F is a medium-light, vivid orange. In OKLCH its lightness is 75%, its chroma 0.159 and its hue 66°. Its hue sits on the warm side of the wheel. The nearest named color is Gamboge (#EE9B00), ΔE 0.018 away. Black text reads best on it, at 8.98:1.
| Hue family | Oranges |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.159) |
| Temperature | warm |
| Nearest name | Gamboge (#EE9B00) |
| Black text | 8.98:1 |
| White text | 2.33:1 |
Values
| HEX | #EF951F |
| RGB | rgb(239, 149, 31) |
| HSL | hsl(34, 87%, 53%) |
| OKLCH | oklch(74.6% 0.159 65.8) |
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 #EF951F | 2.33:1 | Fails | Lc -50.6 | Large or bold text, headings |
| Black text on #EF951F | 8.98:1 | AAA | Lc 58.3 | Large or bold text, headings |
| #EF951F text on white | 2.33:1 | Fails | Lc 45.7 | Large or bold text, headings |
| #EF951F text on black | 8.98:1 | AAA | Lc -56.4 | 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
#FCF4EC
oklch(97.1% 0.014 67.7)
-
Step 100
100
#F8E7D6
oklch(93.7% 0.029 67.5)
-
Step 200
200
#F3D3B3
oklch(88.6% 0.056 67)
-
Step 300
300
#EDB47B
oklch(81% 0.099 65.7)
-
Step 400
400 (this color)
#EF951F
oklch(74.6% 0.159 65.8)
-
Step 500
500
#C27500
oklch(63.2% 0.141 65.8)
-
Step 600
600
#A36200
oklch(55.6% 0.124 66.2)
-
Step 700
700
#8A5200
oklch(49.2% 0.11 66)
-
Step 800
800
#714200
oklch(42.6% 0.095 65.8)
-
Step 900
900
#5F3700
oklch(37.8% 0.084 66.2)
-
Step 950
950
#3A1F00
oklch(27% 0.06 65.1)
#EF951F 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) | #B29D00 | 0.104 |
| Deuteranopia (no green cones) | #C7B222 | 0.092 |
| Tritanopia (no blue cones) | #FF8080 | 0.118 |
| Achromatopsia (no color) | #AAAAAA | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF951F
#EF951F
oklch(74.6% 0.159 65.8)
- #58B4FF
#58B4FF
oklch(74.6% 0.14 245.8)
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 #EF951F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gamboge #EE9B00 ΔE 0.018
- Tangerine #FF9408 ΔE 0.027
- Dark Orange #FF8C00 ΔE 0.031
- Faded Orange #F0944D ΔE 0.031
- Pastel Orange #FF964F ΔE 0.044
- Orange Wheel #F77F00 ΔE 0.048
- Earth Yellow #DDA15E ΔE 0.049
- Dusty Orange #F0833A ΔE 0.049
Use #EF951F 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.