#F37F40
Closest named color: Dusty Orange (#F0833A). oklch(71.7% 0.161 46.8), rgb(243, 127, 64).
Aa
Black text reads best on this color (7.92:1).
About this color
#F37F40 is a medium-light, vivid orange. In OKLCH its lightness is 72%, its chroma 0.161 and its hue 47°. Its hue sits on the warm side of the wheel. The nearest named color is Dusty Orange (#F0833A), ΔE 0.012 away. Black text reads best on it, at 7.92:1.
| Hue family | Oranges |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.161) |
| Temperature | warm |
| Nearest name | Dusty Orange (#F0833A) |
| Black text | 7.92:1 |
| White text | 2.65:1 |
Values
| HEX | #F37F40 |
| RGB | rgb(243, 127, 64) |
| HSL | hsl(21, 88%, 60%) |
| OKLCH | oklch(71.7% 0.161 46.8) |
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 #F37F40 | 2.65:1 | Fails | Lc -56.3 | Large or bold text, headings |
| Black text on #F37F40 | 7.92:1 | AAA | Lc 52.9 | Large or bold text, headings |
| #F37F40 text on white | 2.65:1 | Fails | Lc 51.1 | Large or bold text, headings |
| #F37F40 text on black | 7.92:1 | AAA | Lc -50.8 | 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
#FEF3EE
oklch(97.1% 0.014 46.2)
-
Step 100
100
#FBE4DA
oklch(93.5% 0.029 45)
-
Step 200
200
#FACFBA
oklch(88.6% 0.056 47.5)
-
Step 300
300
#F7AC88
oklch(80.8% 0.101 46.5)
-
Step 400
400 (this color)
#F37F40
oklch(71.7% 0.161 46.8)
-
Step 500
500
#DB5F00
oklch(63.2% 0.175 46.8)
-
Step 600
600
#B94F00
oklch(55.7% 0.155 46.7)
-
Step 700
700
#9C4200
oklch(49.2% 0.136 47)
-
Step 800
800
#813500
oklch(42.8% 0.119 46.8)
-
Step 900
900
#6C2B00
oklch(37.6% 0.105 46.7)
-
Step 950
950
#421800
oklch(27% 0.074 47.5)
#F37F40 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) | #A08F39 | 0.144 |
| Deuteranopia (no green cones) | #BCA93E | 0.132 |
| Tritanopia (no blue cones) | #FF6771 | 0.086 |
| Achromatopsia (no color) | #9F9F9F | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F37F40
#F37F40
oklch(71.7% 0.161 46.8)
- #00B4E6
#00B4E6
oklch(71.8% 0.138 226.7)
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 #F37F40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Orange #F0833A ΔE 0.012
- Coral #FF7F50 ΔE 0.027
- Pumpkin Orange #FB7D07 ΔE 0.028
- Orange Wheel #F77F00 ΔE 0.029
- Melon #FF7855 ΔE 0.035
- Pinkish Orange #FF724C ΔE 0.037
- Faded Orange #F0944D ΔE 0.045
- Dark Peach #DE7E5D ΔE 0.046
Use #F37F40 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.