#F66A3F
Closest named color: Tomato (#FF6347). oklch(69.1% 0.182 37.4), rgb(246, 106, 63).
Aa
Black text reads best on this color (7.05:1).
About this color
#F66A3F is a medium-light, vivid red. In OKLCH its lightness is 69%, its chroma 0.182 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 7.05:1.
| Hue family | Reds |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.182) |
| Temperature | warm |
| Nearest name | Tomato (#FF6347) |
| Black text | 7.05:1 |
| White text | 2.97:1 |
Values
| HEX | #F66A3F |
| RGB | rgb(246, 106, 63) |
| HSL | hsl(14, 91%, 61%) |
| OKLCH | oklch(69.1% 0.182 37.4) |
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 #F66A3F | 2.97:1 | Fails | Lc -60.9 | Content text, not long reading |
| Black text on #F66A3F | 7.05:1 | AAA | Lc 48.4 | Large or bold text, headings |
| #F66A3F text on white | 2.97:1 | Fails | Lc 55.6 | Large or bold text, headings |
| #F66A3F text on black | 7.05:1 | AAA | Lc -46.2 | 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)
#F66A3F
oklch(69.1% 0.182 37.4)
-
Step 500
500
#EC4800
oklch(63.1% 0.21 37.3)
-
Step 600
600
#C73C00
oklch(55.6% 0.184 37.5)
-
Step 700
700
#A83100
oklch(49% 0.162 37.4)
-
Step 800
800
#8B2700
oklch(42.7% 0.141 37.5)
-
Step 900
900
#751F00
oklch(37.6% 0.125 37.3)
-
Step 950
950
#481000
oklch(26.9% 0.089 37.6)
#F66A3F 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) | #91823A | 0.180 |
| Deuteranopia (no green cones) | #B3A13B | 0.165 |
| Tritanopia (no blue cones) | #FF4A61 | 0.076 |
| Achromatopsia (no color) | #959595 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F66A3F
#F66A3F
oklch(69.1% 0.182 37.4)
- #00ADCE
#00ADCE
oklch(69% 0.124 217.9)
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 #F66A3F, 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 0.026
- Orange Pink #FF6F52 ΔE 0.026
- Burnt Sienna #E76F51 ΔE 0.029
- Bright Orange #FF5B00 ΔE 0.034
- Melon #FF7855 ΔE 0.036
- Orange Pant #FB5607 ΔE 0.037
- Grapefruit #FD5956 ΔE 0.046
Use #F66A3F 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.