#EF9721
Closest named color: Gamboge (#EE9B00). oklch(75% 0.157 66.8), rgb(239, 151, 33).
Aa
Black text reads best on this color (9.11:1).
About this color
#EF9721 is a medium-light, vivid orange. In OKLCH its lightness is 75%, its chroma 0.157 and its hue 67°. Its hue sits on the warm side of the wheel. The nearest named color is Gamboge (#EE9B00), ΔE 0.015 away. Black text reads best on it, at 9.11:1.
| Hue family | Oranges |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.157) |
| Temperature | warm |
| Nearest name | Gamboge (#EE9B00) |
| Black text | 9.11:1 |
| White text | 2.30:1 |
Values
| HEX | #EF9721 |
| RGB | rgb(239, 151, 33) |
| HSL | hsl(34, 87%, 53%) |
| OKLCH | oklch(75% 0.157 66.8) |
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 #EF9721 | 2.30:1 | Fails | Lc -49.9 | Large or bold text, headings |
| Black text on #EF9721 | 9.11:1 | AAA | Lc 58.9 | Large or bold text, headings |
| #EF9721 text on white | 2.30:1 | Fails | Lc 45.0 | Large or bold text, headings |
| #EF9721 text on black | 9.11:1 | AAA | Lc -57.1 | 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
#F7E7D6
oklch(93.6% 0.029 69.2)
-
Step 200
200
#F2D3B3
oklch(88.5% 0.055 67.9)
-
Step 300
300
#ECB47B
oklch(80.9% 0.098 66.2)
-
Step 400
400 (this color)
#EF9721
oklch(75% 0.157 66.8)
-
Step 500
500
#C17600
oklch(63.2% 0.14 66.8)
-
Step 600
600
#A26200
oklch(55.5% 0.123 66.7)
-
Step 700
700
#895200
oklch(49.1% 0.109 66.6)
-
Step 800
800
#714300
oklch(42.8% 0.095 66.9)
-
Step 900
900
#5E3700
oklch(37.6% 0.083 67)
-
Step 950
950
#392000
oklch(27% 0.059 68.3)
#EF9721 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) | #B49E00 | 0.100 |
| Deuteranopia (no green cones) | #C8B324 | 0.089 |
| Tritanopia (no blue cones) | #FF8282 | 0.120 |
| Achromatopsia (no color) | #ABABAB | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF9721
#EF9721
oklch(75% 0.157 66.8)
- #5EB5FF
#5EB5FF
oklch(75% 0.136 246.6)
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 #EF9721, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gamboge #EE9B00 ΔE 0.015
- Tangerine #FF9408 ΔE 0.027
- Faded Orange #F0944D ΔE 0.033
- Dark Orange #FF8C00 ΔE 0.033
- Pastel Orange #FF964F ΔE 0.044
- Orange #FFA500 ΔE 0.046
- Mango #FFA62B ΔE 0.047
- Goldenrod #DAA520 ΔE 0.047
Use #EF9721 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.