#F37040
Closest named color: Pinkish Orange (#FF724C). oklch(69.5% 0.173 39.9), rgb(243, 112, 64).
Aa
Black text reads best on this color (7.20:1).
About this color
#F37040 is a medium-light, vivid red. In OKLCH its lightness is 69%, its chroma 0.173 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Pinkish Orange (#FF724C), ΔE 0.026 away. Black text reads best on it, at 7.20:1.
| Hue family | Reds |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.173) |
| Temperature | warm |
| Nearest name | Pinkish Orange (#FF724C) |
| Black text | 7.20:1 |
| White text | 2.91:1 |
Values
| HEX | #F37040 |
| RGB | rgb(243, 112, 64) |
| HSL | hsl(16, 88%, 60%) |
| OKLCH | oklch(69.5% 0.173 39.9) |
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 #F37040 | 2.91:1 | Fails | Lc -60.2 | Content text, not long reading |
| Black text on #F37040 | 7.20:1 | AAA | Lc 49.2 | Large or bold text, headings |
| #F37040 text on white | 2.91:1 | Fails | Lc 54.9 | Large or bold text, headings |
| #F37040 text on black | 7.20:1 | AAA | Lc -47.0 | 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
#FFF2EE
oklch(97% 0.015 37.9)
-
Step 100
100
#FEE3DB
oklch(93.6% 0.032 37.1)
-
Step 200
200
#FDCDBC
oklch(88.6% 0.059 40.4)
-
Step 300
300
#FDA88B
oklch(80.8% 0.109 39.6)
-
Step 400
400 (this color)
#F37040
oklch(69.5% 0.173 39.9)
-
Step 500
500
#E75000
oklch(63.2% 0.199 39.9)
-
Step 600
600
#C34200
oklch(55.6% 0.175 39.8)
-
Step 700
700
#A53700
oklch(49.2% 0.154 40)
-
Step 800
800
#882C00
oklch(42.7% 0.134 40.1)
-
Step 900
900
#732300
oklch(37.7% 0.119 39.6)
-
Step 950
950
#471200
oklch(27% 0.086 39.4)
#F37040 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) | #94853A | 0.168 |
| Deuteranopia (no green cones) | #B4A23D | 0.153 |
| Tritanopia (no blue cones) | #FF5466 | 0.078 |
| Achromatopsia (no color) | #979797 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F37040
#F37040
oklch(69.5% 0.173 39.9)
- #00AED3
#00AED3
oklch(69.5% 0.127 220.3)
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 #F37040, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pinkish Orange #FF724C ΔE 0.026
- Burnt Sienna #E76F51 ΔE 0.027
- Orange Pink #FF6F52 ΔE 0.029
- Tomato #FF6347 ΔE 0.033
- Melon #FF7855 ΔE 0.033
- Coral #FF7F50 ΔE 0.041
- Bright Orange #FF5B00 ΔE 0.042
- Dusty Orange #F0833A ΔE 0.043
Use #F37040 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.