#F55A51
Closest named color: Grapefruit (#FD5956). oklch(67.1% 0.192 26.8), rgb(245, 90, 81).
Aa
Black text reads best on this color (6.46:1).
About this color
#F55A51 is a medium-light, vivid red. In OKLCH its lightness is 67%, its chroma 0.192 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Grapefruit (#FD5956), ΔE 0.016 away. Black text reads best on it, at 6.46:1.
| Hue family | Reds |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.192) |
| Temperature | warm |
| Nearest name | Grapefruit (#FD5956) |
| Black text | 6.46:1 |
| White text | 3.24:1 |
Values
| HEX | #F55A51 |
| RGB | rgb(245, 90, 81) |
| HSL | hsl(3, 89%, 64%) |
| OKLCH | oklch(67.1% 0.192 26.8) |
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 #F55A51 | 3.24:1 | AA large text | Lc -64.2 | Content text, not long reading |
| Black text on #F55A51 | 6.46:1 | AA | Lc 45.3 | Large or bold text, headings |
| #F55A51 text on white | 3.24:1 | AA large text | Lc 58.8 | Large or bold text, headings |
| #F55A51 text on black | 6.46:1 | AA | Lc -42.9 | Non-text elements, placeholder text |
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
#FFE2DE
oklch(93.5% 0.033 27.1)
-
Step 200
200
#FFCBC4
oklch(88.6% 0.06 27.2)
-
Step 300
300
#FFA59B
oklch(80.9% 0.108 26.6)
-
Step 400
400 (this color)
#F55A51
oklch(67.1% 0.192 26.8)
-
Step 500
500
#FB1F28
oklch(63% 0.245 26.8)
-
Step 600
600
#D90018
oklch(55.7% 0.227 26.9)
-
Step 700
700
#B70013
oklch(49% 0.2 26.8)
-
Step 800
800
#98000E
oklch(42.8% 0.174 26.8)
-
Step 900
900
#80000A
oklch(37.7% 0.154 26.7)
-
Step 950
950
#4D0607
oklch(27.1% 0.102 26.8)
#F55A51 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) | #847A4F | 0.203 |
| Deuteranopia (no green cones) | #AB9B4D | 0.186 |
| Tritanopia (no blue cones) | #FF3559 | 0.056 |
| Achromatopsia (no color) | #8F8F8F | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F55A51
#F55A51
oklch(67.1% 0.192 26.8)
- #00A9B9
#00A9B9
oklch(67.1% 0.115 206.7)
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 #F55A51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grapefruit #FD5956 ΔE 0.016
- Coral Pink #FF6163 ΔE 0.030
- Light Red #FF474C ΔE 0.030
- Tomato #FF6347 ΔE 0.031
- Watermelon #FD4659 ΔE 0.036
- Orangey Red #FA4224 ΔE 0.043
- Burnt Sienna #E76F51 ΔE 0.044
- Orange Pink #FF6F52 ΔE 0.047
Use #F55A51 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.