#F23B2C
Closest named color: Vermillion (#F4320C). oklch(63.1% 0.221 29.4), rgb(242, 59, 44).
Aa
Black text reads best on this color (5.43:1).
About this color
#F23B2C is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.221 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Vermillion (#F4320C), ΔE 0.016 away. Black text reads best on it, at 5.43:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.221) |
| Temperature | warm |
| Nearest name | Vermillion (#F4320C) |
| Black text | 5.43:1 |
| White text | 3.86:1 |
Values
| HEX | #F23B2C |
| RGB | rgb(242, 59, 44) |
| HSL | hsl(5, 88%, 56%) |
| OKLCH | oklch(63.1% 0.221 29.4) |
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 #F23B2C | 3.86:1 | AA large text | Lc -70.0 | Content text, not long reading |
| Black text on #F23B2C | 5.43:1 | AA | Lc 39.6 | Non-text elements, placeholder text |
| #F23B2C text on white | 3.86:1 | AA large text | Lc 64.5 | Content text, not long reading |
| #F23B2C text on black | 5.43:1 | AA | Lc -37.2 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FEE3DE
oklch(93.6% 0.031 30.2)
-
Step 200
200
#FECBC2
oklch(88.4% 0.06 29.9)
-
Step 300
300
#FFA698
oklch(81% 0.108 29.4)
-
Step 400
400
#F96F5E
oklch(70.6% 0.173 29.2)
-
Step 500
500 (this color)
#F23B2C
oklch(63.1% 0.221 29.4)
-
Step 600
600
#D90500
oklch(55.7% 0.227 29.5)
-
Step 700
700
#B70300
oklch(49% 0.2 29.4)
-
Step 800
800
#980200
oklch(42.8% 0.174 29.4)
-
Step 900
900
#7D0E08
oklch(37.8% 0.144 29.3)
-
Step 950
950
#490D08
oklch(26.9% 0.091 29.3)
#F23B2C 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) | #746828 | 0.237 |
| Deuteranopia (no green cones) | #A19022 | 0.215 |
| Tritanopia (no blue cones) | #FF003A | 0.045 |
| Achromatopsia (no color) | #828282 | 0.222 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F23B2C
#F23B2C
oklch(63.1% 0.221 29.4)
- #009BAD
#009BAD
oklch(63.1% 0.109 209.2)
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 #F23B2C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vermillion #F4320C ΔE 0.016
- Orangey Red #FA4224 ΔE 0.022
- Tomato Red #EC2D01 ΔE 0.027
- Red Orange #FD3C06 ΔE 0.028
- Orangered #FE420F ΔE 0.032
- Strawberry #FB2943 ΔE 0.035
- Red Pantone #EF233C ΔE 0.035
- Imperial Red #E63946 ΔE 0.035
Use #F23B2C 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.