#F66A55
Closest named color: Tomato (#FF6347). oklch(69.4% 0.176 30.7), rgb(246, 106, 85).
Aa
Black text reads best on this color (7.11:1).
About this color
#F66A55 is a medium-light, vivid red. In OKLCH its lightness is 69%, its chroma 0.176 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato (#FF6347), ΔE 0.020 away. Black text reads best on it, at 7.11:1.
| Hue family | Reds |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.176) |
| Temperature | warm |
| Nearest name | Tomato (#FF6347) |
| Black text | 7.11:1 |
| White text | 2.95:1 |
Values
| HEX | #F66A55 |
| RGB | rgb(246, 106, 85) |
| HSL | hsl(8, 90%, 65%) |
| OKLCH | oklch(69.4% 0.176 30.7) |
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 #F66A55 | 2.95:1 | Fails | Lc -60.6 | Content text, not long reading |
| Black text on #F66A55 | 7.11:1 | AAA | Lc 48.7 | Large or bold text, headings |
| #F66A55 text on white | 2.95:1 | Fails | Lc 55.3 | Large or bold text, headings |
| #F66A55 text on black | 7.11:1 | AAA | Lc -46.5 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FFE3DD
oklch(93.7% 0.032 32.1)
-
Step 200
200
#FFCBC1
oklch(88.5% 0.061 30.9)
-
Step 300
300
#FFA696
oklch(80.9% 0.109 30.7)
-
Step 400
400 (this color)
#F66A55
oklch(69.4% 0.176 30.7)
-
Step 500
500
#F33822
oklch(63% 0.225 30.6)
-
Step 600
600
#D51900
oklch(55.5% 0.218 30.7)
-
Step 700
700
#B51300
oklch(49.2% 0.193 30.7)
-
Step 800
800
#950E00
oklch(42.6% 0.167 30.7)
-
Step 900
900
#7D0C01
oklch(37.6% 0.146 30.8)
-
Step 950
950
#4A0C06
oklch(27% 0.093 30.2)
#F66A55 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) | #8F8352 | 0.181 |
| Deuteranopia (no green cones) | #B1A251 | 0.169 |
| Tritanopia (no blue cones) | #FF4E66 | 0.059 |
| Achromatopsia (no color) | #969696 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F66A55
#F66A55
oklch(69.4% 0.176 30.7)
- #00B0C6
#00B0C6
oklch(69.4% 0.12 210.4)
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 #F66A55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato #FF6347 ΔE 0.020
- Orange Pink #FF6F52 ΔE 0.022
- Pinkish Orange #FF724C ΔE 0.028
- Burnt Sienna #E76F51 ΔE 0.028
- Coral Pink #FF6163 ΔE 0.031
- Grapefruit #FD5956 ΔE 0.032
- Melon #FF7855 ΔE 0.036
- Salmon #FA8072 ΔE 0.049
Use #F66A55 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.