#F66B42
Closest named color: Tomato (#FF6347). oklch(69.2% 0.18 37), rgb(246, 107, 66).
Aa
Black text reads best on this color (7.10:1).
About this color
#F66B42 is a medium-light, vivid red. In OKLCH its lightness is 69%, its chroma 0.180 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato (#FF6347), ΔE 0.022 away. Black text reads best on it, at 7.10:1.
| Hue family | Reds |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.180) |
| Temperature | warm |
| Nearest name | Tomato (#FF6347) |
| Black text | 7.10:1 |
| White text | 2.95:1 |
Values
| HEX | #F66B42 |
| RGB | rgb(246, 107, 66) |
| HSL | hsl(14, 91%, 61%) |
| OKLCH | oklch(69.2% 0.18 37) |
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 #F66B42 | 2.95:1 | Fails | Lc -60.7 | Content text, not long reading |
| Black text on #F66B42 | 7.10:1 | AAA | Lc 48.7 | Large or bold text, headings |
| #F66B42 text on white | 2.95:1 | Fails | Lc 55.4 | Large or bold text, headings |
| #F66B42 text on black | 7.10:1 | 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
#FFF2EF
oklch(97.1% 0.015 33.1)
-
Step 100
100
#FFE3DB
oklch(93.7% 0.033 36.5)
-
Step 200
200
#FFCCBC
oklch(88.6% 0.062 38.1)
-
Step 300
300
#FFA78D
oklch(80.9% 0.111 37.2)
-
Step 400
400 (this color)
#F66B42
oklch(69.2% 0.18 37)
-
Step 500
500
#ED4700
oklch(63.2% 0.211 37)
-
Step 600
600
#C83A00
oklch(55.6% 0.186 36.9)
-
Step 700
700
#A93000
oklch(49.1% 0.164 37)
-
Step 800
800
#8C2600
oklch(42.7% 0.143 37)
-
Step 900
900
#761F00
oklch(37.8% 0.126 37.1)
-
Step 950
950
#490F00
oklch(27% 0.091 36.7)
#F66B42 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) | #91833D | 0.179 |
| Deuteranopia (no green cones) | #B3A23E | 0.165 |
| Tritanopia (no blue cones) | #FF4C62 | 0.074 |
| Achromatopsia (no color) | #969696 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F66B42
#F66B42
oklch(69.2% 0.18 37)
- #00AECE
#00AECE
oklch(69.2% 0.124 217.2)
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 #F66B42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato #FF6347 ΔE 0.022
- Pinkish Orange #FF724C ΔE 0.024
- Orange Pink #FF6F52 ΔE 0.024
- Burnt Sienna #E76F51 ΔE 0.028
- Melon #FF7855 ΔE 0.034
- Bright Orange #FF5B00 ΔE 0.036
- Orange Pant #FB5607 ΔE 0.040
- Grapefruit #FD5956 ΔE 0.045
Use #F66B42 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.