#F52B22
Closest named color: Vermillion (#F4320C). oklch(62.5% 0.235 28.9), rgb(245, 43, 34).
Aa
Black text reads best on this color (5.25:1).
About this color
#F52B22 is a medium-light, vivid red. In OKLCH its lightness is 62%, its chroma 0.235 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Vermillion (#F4320C), ΔE 0.014 away. Black text reads best on it, at 5.25:1.
| Hue family | Reds |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.235) |
| Temperature | warm |
| Nearest name | Vermillion (#F4320C) |
| Black text | 5.25:1 |
| White text | 3.99:1 |
Values
| HEX | #F52B22 |
| RGB | rgb(245, 43, 34) |
| HSL | hsl(3, 91%, 55%) |
| OKLCH | oklch(62.5% 0.235 28.9) |
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 #F52B22 | 3.99:1 | AA large text | Lc -70.8 | Content text, not long reading |
| Black text on #F52B22 | 5.25:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #F52B22 text on white | 3.99:1 | AA large text | Lc 65.3 | Content text, not long reading |
| #F52B22 text on black | 5.25:1 | AA | Lc -36.4 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FFE2DE
oklch(93.5% 0.033 27.1)
-
Step 200
200
#FFCBC2
oklch(88.5% 0.061 29.7)
-
Step 300
300
#FFA698
oklch(81% 0.108 29.4)
-
Step 400
400
#FE6A5A
oklch(70.6% 0.184 28.7)
-
Step 500
500 (this color)
#F52B22
oklch(62.5% 0.235 28.9)
-
Step 600
600
#D90005
oklch(55.6% 0.228 28.8)
-
Step 700
700
#B80003
oklch(49.2% 0.201 28.9)
-
Step 800
800
#980002
oklch(42.7% 0.175 28.9)
-
Step 900
900
#800203
oklch(37.8% 0.153 28.8)
-
Step 950
950
#4B0906
oklch(26.9% 0.097 28.7)
#F52B22 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) | #70631D | 0.254 |
| Deuteranopia (no green cones) | #A08F11 | 0.231 |
| Tritanopia (no blue cones) | #FF002D | 0.028 |
| Achromatopsia (no color) | #7F7F7F | 0.236 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F52B22
#F52B22
oklch(62.5% 0.235 28.9)
- #0099AA
#0099AA
oklch(62.5% 0.108 208.6)
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 #F52B22, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vermillion #F4320C ΔE 0.014
- Fire Engine Red #FE0002 ΔE 0.022
- Tomato Red #EC2D01 ΔE 0.023
- Bright Red #FF000D ΔE 0.023
- Red #FF0000 ΔE 0.023
- Cherry Red #F7022A ΔE 0.024
- Red Pantone #EF233C ΔE 0.029
- Orangey Red #FA4224 ΔE 0.030
Use #F52B22 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.