#F23C34
Closest named color: Vermillion (#F4320C). oklch(63.3% 0.219 27.9), rgb(242, 60, 52).
Aa
Black text reads best on this color (5.47:1).
About this color
#F23C34 is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.219 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Vermillion (#F4320C), ΔE 0.022 away. Black text reads best on it, at 5.47:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.219) |
| Temperature | warm |
| Nearest name | Vermillion (#F4320C) |
| Black text | 5.47:1 |
| White text | 3.83:1 |
Values
| HEX | #F23C34 |
| RGB | rgb(242, 60, 52) |
| HSL | hsl(3, 88%, 58%) |
| OKLCH | oklch(63.3% 0.219 27.9) |
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 #F23C34 | 3.83:1 | AA large text | Lc -69.8 | Content text, not long reading |
| Black text on #F23C34 | 5.47:1 | AA | Lc 39.8 | Non-text elements, placeholder text |
| #F23C34 text on white | 3.83:1 | AA large text | Lc 64.3 | Content text, not long reading |
| #F23C34 text on black | 5.47:1 | AA | Lc -37.4 | 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
#FEE3DE
oklch(93.6% 0.031 30.2)
-
Step 200
200
#FECBC4
oklch(88.5% 0.059 27.4)
-
Step 300
300
#FEA69A
oklch(80.9% 0.106 28.1)
-
Step 400
400
#F96F62
oklch(70.7% 0.172 27.7)
-
Step 500
500 (this color)
#F23C34
oklch(63.3% 0.219 27.9)
-
Step 600
600
#D9000F
oklch(55.6% 0.227 28)
-
Step 700
700
#B8000B
oklch(49.2% 0.201 28)
-
Step 800
800
#980007
oklch(42.7% 0.175 28)
-
Step 900
900
#7C0F0D
oklch(37.7% 0.142 28.2)
-
Step 950
950
#490D0A
oklch(26.9% 0.09 27.9)
#F23C34 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) | #746931 | 0.236 |
| Deuteranopia (no green cones) | #A1902C | 0.214 |
| Tritanopia (no blue cones) | #FF003C | 0.044 |
| Achromatopsia (no color) | #828282 | 0.221 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F23C34
#F23C34
oklch(63.3% 0.219 27.9)
- #009CAC
#009CAC
oklch(63.3% 0.109 207.6)
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 #F23C34, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vermillion #F4320C ΔE 0.022
- Orangey Red #FA4224 ΔE 0.024
- Strawberry #FB2943 ΔE 0.030
- Tomato Red #EC2D01 ΔE 0.031
- Red Orange #FD3C06 ΔE 0.031
- Imperial Red #E63946 ΔE 0.032
- Red Pantone #EF233C ΔE 0.032
- Orangered #FE420F ΔE 0.035
Use #F23C34 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.