#F55742
Closest named color: Grapefruit (#FD5956). oklch(66.6% 0.197 30.5), rgb(245, 87, 66).
Aa
Black text reads best on this color (6.32:1).
About this color
#F55742 is a medium-light, vivid red. In OKLCH its lightness is 67%, its chroma 0.197 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Grapefruit (#FD5956), ΔE 0.026 away. Black text reads best on it, at 6.32:1.
| Hue family | Reds |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.197) |
| Temperature | warm |
| Nearest name | Grapefruit (#FD5956) |
| Black text | 6.32:1 |
| White text | 3.32:1 |
Values
| HEX | #F55742 |
| RGB | rgb(245, 87, 66) |
| HSL | hsl(7, 90%, 61%) |
| OKLCH | oklch(66.6% 0.197 30.5) |
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 #F55742 | 3.32:1 | AA large text | Lc -65.0 | Content text, not long reading |
| Black text on #F55742 | 6.32:1 | AA | Lc 44.5 | Non-text elements, placeholder text |
| #F55742 text on white | 3.32:1 | AA large text | Lc 59.6 | Large or bold text, headings |
| #F55742 text on black | 6.32:1 | AA | Lc -42.2 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FCE4DF
oklch(93.7% 0.027 31.7)
-
Step 200
200
#FBCDC4
oklch(88.6% 0.054 31)
-
Step 300
300
#F9A99B
oklch(80.9% 0.097 30.3)
-
Step 400
400
#F17764
oklch(70.7% 0.154 30.5)
-
Step 500
500 (this color)
#F55742
oklch(66.6% 0.197 30.5)
-
Step 600
600
#D41E09
oklch(55.6% 0.215 30.5)
-
Step 700
700
#B51200
oklch(49.1% 0.194 30.6)
-
Step 800
800
#941104
oklch(42.6% 0.165 30.4)
-
Step 900
900
#771B10
oklch(37.7% 0.128 30.6)
-
Step 950
950
#46120B
oklch(26.9% 0.081 30.7)
#F55742 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) | #83773F | 0.207 |
| Deuteranopia (no green cones) | #AB9A3D | 0.189 |
| Tritanopia (no blue cones) | #FF2C53 | 0.064 |
| Achromatopsia (no color) | #8D8D8D | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F55742
#F55742
oklch(66.6% 0.197 30.5)
- #00A6BB
#00A6BB
oklch(66.5% 0.115 210.5)
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 #F55742, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grapefruit #FD5956 ΔE 0.026
- Tomato #FF6347 ΔE 0.031
- Orangey Red #FA4224 ΔE 0.031
- Light Red #FF474C ΔE 0.032
- Orange Pant #FB5607 ΔE 0.034
- Blood Orange #FE4B03 ΔE 0.035
- Orangered #FE420F ΔE 0.036
- Orange Red #FF4500 ΔE 0.037
Use #F55742 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.