#EF7C00
Closest named color: Orange Wheel (#F77F00). oklch(70.4% 0.174 55), rgb(239, 124, 0).
Aa
Black text reads best on this color (7.55:1).
About this color
#EF7C00 is a medium-light, vivid orange. In OKLCH its lightness is 70%, its chroma 0.174 and its hue 55°. Its hue sits on the warm side of the wheel. The nearest named color is Orange Wheel (#F77F00), ΔE 0.017 away. Black text reads best on it, at 7.55:1.
| Hue family | Oranges |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.174) |
| Temperature | warm |
| Nearest name | Orange Wheel (#F77F00) |
| Black text | 7.55:1 |
| White text | 2.78:1 |
Values
| HEX | #EF7C00 |
| RGB | rgb(239, 124, 0) |
| HSL | hsl(31, 100%, 47%) |
| OKLCH | oklch(70.4% 0.174 55) |
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 #EF7C00 | 2.78:1 | Fails | Lc -58.2 | Large or bold text, headings |
| Black text on #EF7C00 | 7.55:1 | AAA | Lc 51.1 | Large or bold text, headings |
| #EF7C00 text on white | 2.78:1 | Fails | Lc 53.0 | Large or bold text, headings |
| #EF7C00 text on black | 7.55:1 | AAA | Lc -48.9 | 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
#FEF3EC
oklch(97.1% 0.015 54.9)
-
Step 100
100
#FBE5D6
oklch(93.6% 0.031 56.6)
-
Step 200
200
#FACFB4
oklch(88.5% 0.061 53.9)
-
Step 300
300
#F7AE7B
oklch(80.9% 0.109 55.5)
-
Step 400
400 (this color)
#EF7C00
oklch(70.4% 0.174 55)
-
Step 500
500
#CF6A00
oklch(63.1% 0.157 54.7)
-
Step 600
600
#AE5900
oklch(55.6% 0.137 55.3)
-
Step 700
700
#934A00
oklch(49.1% 0.121 55.1)
-
Step 800
800
#793C00
oklch(42.6% 0.105 55.3)
-
Step 900
900
#663100
oklch(37.7% 0.094 54.7)
-
Step 950
950
#3E1C00
oklch(27% 0.066 55.9)
#EF7C00 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) | #9E8B00 | 0.141 |
| Deuteranopia (no green cones) | #BAA500 | 0.127 |
| Tritanopia (no blue cones) | #FF616A | 0.111 |
| Achromatopsia (no color) | #9B9B9B | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF7C00
#EF7C00
oklch(70.4% 0.174 55)
- #00ACEE
#00ACEE
oklch(70.3% 0.149 235.1)
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 #EF7C00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orange Wheel #F77F00 ΔE 0.017
- Pumpkin Orange #FB7D07 ΔE 0.022
- Dusty Orange #F0833A ΔE 0.025
- Pumpkin #E17701 ΔE 0.029
- Dull Orange #D8863B ΔE 0.044
- Dark Orange #FF8C00 ΔE 0.048
- Coral #FF7F50 ΔE 0.054
- Faded Orange #F0944D ΔE 0.057
Use #EF7C00 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.