#B22540
Closest named color: Rouge (#AB1239). oklch(50.4% 0.176 16.2), rgb(178, 37, 64).
Aa
White text reads best on this color (6.49:1).
About this color
#B22540 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.176 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.027 away. White text reads best on it, at 6.49:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.176) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 3.23:1 |
| White text | 6.49:1 |
Values
| HEX | #B22540 |
| RGB | rgb(178, 37, 64) |
| HSL | hsl(349, 66%, 42%) |
| OKLCH | oklch(50.4% 0.176 16.2) |
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 #B22540 | 6.49:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #B22540 | 3.23:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #B22540 text on white | 6.49:1 | AA | Lc 80.7 | Fine for body text |
| #B22540 text on black | 3.23:1 | AA large text | Lc -21.1 | Dividers and decoration only |
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 700.
-
Step 50
50
#FDF3F3
oklch(97.2% 0.011 17.3)
-
Step 100
100
#FAE4E4
oklch(93.7% 0.024 17.6)
-
Step 200
200
#F7CDCE
oklch(88.5% 0.048 16.5)
-
Step 300
300
#F2ABAE
oklch(80.9% 0.084 16.3)
-
Step 400
400
#E87A83
oklch(70.6% 0.136 16)
-
Step 500
500
#DE5364
oklch(63.1% 0.173 16.4)
-
Step 600
600
#C9304B
oklch(55.5% 0.188 16.4)
-
Step 700
700 (this color)
#B22540
oklch(50.4% 0.176 16.2)
-
Step 800
800
#8D1E32
oklch(42.7% 0.145 16.3)
-
Step 900
900
#71202C
oklch(37.6% 0.113 16)
-
Step 950
950
#43141A
oklch(27% 0.073 15.8)
#B22540 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) | #4E4B40 | 0.195 |
| Deuteranopia (no green cones) | #72683C | 0.177 |
| Tritanopia (no blue cones) | #C30031 | 0.037 |
| Achromatopsia (no color) | #5E5E5E | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B22540
#B22540
oklch(50.4% 0.176 16.2)
- #007374
#007374
oklch(50.3% 0.086 195.8)
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 #B22540, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.027
- Rose Red #BE013C ΔE 0.028
- Lipstick Red #C0022F ΔE 0.033
- Firebrick #B22222 ΔE 0.034
- Raspberry #B00149 ΔE 0.036
- Brown #A52A2A ΔE 0.039
- Scarlet #BE0119 ΔE 0.044
- Rufous #AE2012 ΔE 0.046
Use #B22540 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.