#F55451
Closest named color: Grapefruit (#FD5956). oklch(66.5% 0.198 25.2), rgb(245, 84, 81).
Aa
Black text reads best on this color (6.26:1).
About this color
#F55451 is a medium-light, vivid red. In OKLCH its lightness is 66%, its chroma 0.198 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Grapefruit (#FD5956), ΔE 0.019 away. Black text reads best on it, at 6.26:1.
| Hue family | Reds |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.198) |
| Temperature | warm |
| Nearest name | Grapefruit (#FD5956) |
| Black text | 6.26:1 |
| White text | 3.34:1 |
Values
| HEX | #F55451 |
| RGB | rgb(245, 84, 81) |
| HSL | hsl(1, 89%, 64%) |
| OKLCH | oklch(66.5% 0.198 25.2) |
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 #F55451 | 3.34:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #F55451 | 6.26:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #F55451 text on white | 3.34:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #F55451 text on black | 6.26:1 | AA | Lc -41.9 | 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 500.
-
Step 50
50
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E0
oklch(93.5% 0.028 25.9)
-
Step 200
200
#FBCCC7
oklch(88.5% 0.054 25.3)
-
Step 300
300
#F9A8A1
oklch(80.9% 0.097 24.9)
-
Step 400
400
#F2756E
oklch(70.7% 0.155 25.1)
-
Step 500
500 (this color)
#F55451
oklch(66.5% 0.198 25.2)
-
Step 600
600
#D41928
oklch(55.6% 0.215 25.2)
-
Step 700
700
#B7001B
oklch(49.1% 0.199 25.2)
-
Step 800
800
#950D19
oklch(42.7% 0.166 25.1)
-
Step 900
900
#77191B
oklch(37.6% 0.128 25)
-
Step 950
950
#461110
oklch(26.9% 0.081 25.4)
#F55451 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) | #80764F | 0.211 |
| Deuteranopia (no green cones) | #A8994C | 0.195 |
| Tritanopia (no blue cones) | #FF2A55 | 0.054 |
| Achromatopsia (no color) | #8C8C8C | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F55451
#F55451
oklch(66.5% 0.198 25.2)
- #00A7B5
#00A7B5
oklch(66.5% 0.114 205.4)
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 #F55451, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grapefruit #FD5956 ΔE 0.019
- Light Red #FF474C ΔE 0.023
- Watermelon #FD4659 ΔE 0.028
- Coral Pink #FF6163 ΔE 0.035
- Orangey Red #FA4224 ΔE 0.039
- Tomato #FF6347 ΔE 0.040
- Orangered #FE420F ΔE 0.047
- Pastel Red #DB5856 ΔE 0.048
Use #F55451 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.