#FB644C
Closest named color: Tomato (#FF6347). oklch(69.2% 0.189 31.4), rgb(251, 100, 76).
Aa
Black text reads best on this color (7.02:1).
About this color
#FB644C is a medium-light, vivid red. In OKLCH its lightness is 69%, its chroma 0.189 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato (#FF6347), ΔE 0.008 away. Black text reads best on it, at 7.02:1.
| Hue family | Reds |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.189) |
| Temperature | warm |
| Nearest name | Tomato (#FF6347) |
| Black text | 7.02:1 |
| White text | 2.98:1 |
Values
| HEX | #FB644C |
| RGB | rgb(251, 100, 76) |
| HSL | hsl(8, 96%, 64%) |
| OKLCH | oklch(69.2% 0.189 31.4) |
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 #FB644C | 2.98:1 | Fails | Lc -61.0 | Content text, not long reading |
| Black text on #FB644C | 7.02:1 | AAA | Lc 48.4 | Large or bold text, headings |
| #FB644C text on white | 2.98:1 | Fails | Lc 55.6 | Large or bold text, headings |
| #FB644C text on black | 7.02:1 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FFE2DD
oklch(93.5% 0.033 29.4)
-
Step 200
200
#FFCBC1
oklch(88.5% 0.061 30.9)
-
Step 300
300
#FFA695
oklch(80.9% 0.109 31.4)
-
Step 400
400 (this color)
#FB644C
oklch(69.2% 0.189 31.4)
-
Step 500
500
#FA2903
oklch(63.1% 0.242 31.4)
-
Step 600
600
#D41F00
oklch(55.6% 0.215 31.3)
-
Step 700
700
#B31900
oklch(49.1% 0.189 31.4)
-
Step 800
800
#941200
oklch(42.6% 0.165 31.3)
-
Step 900
900
#7D0E00
oklch(37.7% 0.145 31.4)
-
Step 950
950
#4C0802
oklch(27% 0.1 31.2)
#FB644C 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) | #8D8149 | 0.196 |
| Deuteranopia (no green cones) | #B2A248 | 0.181 |
| Tritanopia (no blue cones) | #FF415F | 0.066 |
| Achromatopsia (no color) | #959595 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #FB644C
#FB644C
oklch(69.2% 0.189 31.4)
- #00AFC6
#00AFC6
oklch(69.2% 0.12 211.2)
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 #FB644C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato #FF6347 ΔE 0.008
- Orange Pink #FF6F52 ΔE 0.023
- Grapefruit #FD5956 ΔE 0.026
- Coral Pink #FF6163 ΔE 0.029
- Pinkish Orange #FF724C ΔE 0.030
- Burnt Sienna #E76F51 ΔE 0.038
- Melon #FF7855 ΔE 0.040
- Bright Orange #FF5B00 ΔE 0.040
Use #FB644C 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.