#F66C10
Closest named color: Bright Orange (#FF5B00). oklch(69.1% 0.19 46), rgb(246, 108, 16).
Aa
Black text reads best on this color (7.07:1).
About this color
#F66C10 is a medium-light, vivid orange. In OKLCH its lightness is 69%, its chroma 0.190 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Bright Orange (#FF5B00), ΔE 0.031 away. Black text reads best on it, at 7.07:1.
| Hue family | Oranges |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.190) |
| Temperature | warm |
| Nearest name | Bright Orange (#FF5B00) |
| Black text | 7.07:1 |
| White text | 2.96:1 |
Values
| HEX | #F66C10 |
| RGB | rgb(246, 108, 16) |
| HSL | hsl(24, 93%, 51%) |
| OKLCH | oklch(69.1% 0.19 46) |
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 #F66C10 | 2.96:1 | Fails | Lc -60.8 | Content text, not long reading |
| Black text on #F66C10 | 7.07:1 | AAA | Lc 48.6 | Large or bold text, headings |
| #F66C10 text on white | 2.96:1 | Fails | Lc 55.4 | Large or bold text, headings |
| #F66C10 text on black | 7.07:1 | AAA | Lc -46.4 | 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
#FFF3ED
oklch(97.2% 0.015 48.6)
-
Step 100
100
#FFE3D7
oklch(93.6% 0.035 44.6)
-
Step 200
200
#FFCCB5
oklch(88.4% 0.066 45.5)
-
Step 300
300
#FFA87F
oklch(80.8% 0.117 45.9)
-
Step 400
400 (this color)
#F66C10
oklch(69.1% 0.19 46)
-
Step 500
500
#DC5D00
oklch(63.1% 0.178 45.8)
-
Step 600
600
#BA4E00
oklch(55.7% 0.157 46)
-
Step 700
700
#9D4100
oklch(49.2% 0.138 46.2)
-
Step 800
800
#823400
oklch(42.8% 0.121 45.9)
-
Step 900
900
#6D2A00
oklch(37.7% 0.107 45.6)
-
Step 950
950
#431700
oklch(27% 0.076 45.7)
#F66C10 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) | #948200 | 0.176 |
| Deuteranopia (no green cones) | #B6A202 | 0.160 |
| Tritanopia (no blue cones) | #FF4A5D | 0.098 |
| Achromatopsia (no color) | #969696 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F66C10
#F66C10
oklch(69.1% 0.19 46)
- #00ABD9
#00ABD9
oklch(69% 0.132 225.8)
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 #F66C10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Orange #FF5B00 ΔE 0.031
- Pumpkin Orange #FB7D07 ΔE 0.038
- Orange Pant #FB5607 ΔE 0.039
- Orange Wheel #F77F00 ΔE 0.041
- Pinkish Orange #FF724C ΔE 0.042
- Pumpkin #E17701 ΔE 0.043
- Dusty Orange #F0833A ΔE 0.045
- Tomato #FF6347 ΔE 0.046
Use #F66C10 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.