#EF7521
Closest named color: Pumpkin (#E17701). oklch(69.4% 0.174 49.1), rgb(239, 117, 33).
Aa
Black text reads best on this color (7.23:1).
About this color
#EF7521 is a medium-light, vivid orange. In OKLCH its lightness is 69%, its chroma 0.174 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Pumpkin (#E17701), ΔE 0.029 away. Black text reads best on it, at 7.23:1.
| Hue family | Oranges |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.174) |
| Temperature | warm |
| Nearest name | Pumpkin (#E17701) |
| Black text | 7.23:1 |
| White text | 2.90:1 |
Values
| HEX | #EF7521 |
| RGB | rgb(239, 117, 33) |
| HSL | hsl(24, 87%, 53%) |
| OKLCH | oklch(69.4% 0.174 49.1) |
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 #EF7521 | 2.90:1 | Fails | Lc -60.0 | Large or bold text, headings |
| Black text on #EF7521 | 7.23:1 | AAA | Lc 49.3 | Large or bold text, headings |
| #EF7521 text on white | 2.90:1 | Fails | Lc 54.7 | Large or bold text, headings |
| #EF7521 text on black | 7.23:1 | AAA | Lc -47.1 | 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
#FEF3ED
oklch(97.1% 0.014 50.8)
-
Step 100
100
#FCE4D8
oklch(93.5% 0.031 48.4)
-
Step 200
200
#FBCEB7
oklch(88.4% 0.06 48.6)
-
Step 300
300
#FAAB81
oklch(80.8% 0.109 48.7)
-
Step 400
400 (this color)
#EF7521
oklch(69.4% 0.174 49.1)
-
Step 500
500
#D76300
oklch(63.2% 0.169 49.3)
-
Step 600
600
#B65200
oklch(55.7% 0.149 48.9)
-
Step 700
700
#994400
oklch(49% 0.131 49)
-
Step 800
800
#7F3700
oklch(42.8% 0.115 48.9)
-
Step 900
900
#6A2D00
oklch(37.6% 0.101 49.1)
-
Step 950
950
#411900
oklch(27% 0.072 49.3)
#EF7521 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) | #98860D | 0.155 |
| Deuteranopia (no green cones) | #B6A21D | 0.139 |
| Tritanopia (no blue cones) | #FF5966 | 0.099 |
| Achromatopsia (no color) | #989898 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF7521
#EF7521
oklch(69.4% 0.174 49.1)
- #00ABE0
#00ABE0
oklch(69.3% 0.137 229.4)
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 #EF7521, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pumpkin #E17701 ΔE 0.029
- Dusty Orange #F0833A ΔE 0.030
- Orange Wheel #F77F00 ΔE 0.031
- Pumpkin Orange #FB7D07 ΔE 0.031
- Burnt Sienna #E76F51 ΔE 0.046
- Pinkish Orange #FF724C ΔE 0.047
- Dull Orange #D8863B ΔE 0.049
- Coral #FF7F50 ΔE 0.049
Use #EF7521 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.