#B57A91
Closest named color: Mauve (#AE7181). oklch(64.7% 0.079 354.5), rgb(181, 122, 145).
Aa
Black text reads best on this color (6.15:1).
About this color
#B57A91 is a medium-light, moderately saturated red. In OKLCH its lightness is 65%, its chroma 0.079 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Mauve (#AE7181), ΔE 0.031 away. Black text reads best on it, at 6.15:1.
| Hue family | Reds |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Mauve (#AE7181) |
| Black text | 6.15:1 |
| White text | 3.41:1 |
Values
| HEX | #B57A91 |
| RGB | rgb(181, 122, 145) |
| HSL | hsl(337, 29%, 59%) |
| OKLCH | oklch(64.7% 0.079 354.5) |
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 #B57A91 | 3.41:1 | AA large text | Lc -67.0 | Content text, not long reading |
| Black text on #B57A91 | 6.15:1 | AA | Lc 42.6 | Non-text elements, placeholder text |
| #B57A91 text on white | 3.41:1 | AA large text | Lc 61.5 | Content text, not long reading |
| #B57A91 text on black | 6.15:1 | AA | Lc -40.2 | 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
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#F0E7EA
oklch(93.6% 0.011 354.9)
-
Step 200
200
#E6D4DA
oklch(88.6% 0.021 355.3)
-
Step 300
300
#D6B7C2
oklch(80.9% 0.038 354.6)
-
Step 400
400
#C191A3
oklch(70.8% 0.062 354.5)
-
Step 500
500 (this color)
#B57A91
oklch(64.7% 0.079 354.5)
-
Step 600
600
#9B5D76
oklch(55.5% 0.087 354.6)
-
Step 700
700
#844D63
oklch(49.1% 0.079 354.9)
-
Step 800
800
#6B3F51
oklch(42.6% 0.066 354.2)
-
Step 900
900
#573643
oklch(37.7% 0.051 354.6)
-
Step 950
950
#332027
oklch(27% 0.031 355.6)
#B57A91 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) | #808592 | 0.086 |
| Deuteranopia (no green cones) | #8F8F90 | 0.079 |
| Tritanopia (no blue cones) | #BE7882 | 0.025 |
| Achromatopsia (no color) | #8B8B8B | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B57A91
#B57A91
oklch(64.7% 0.079 354.5)
- #569E8B
#569E8B
oklch(64.7% 0.079 174.6)
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 #B57A91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mauve #AE7181 ΔE 0.031
- Old Pink #C77986 ΔE 0.034
- Dusty Rose #C0737A ΔE 0.036
- Old Rose #C87F89 ΔE 0.039
- Dusty Lavender #AC86A8 ΔE 0.039
- Dusky Pink #CC7A8B ΔE 0.040
- Brownish Pink #C27E79 ΔE 0.045
- English Lavender #9D8189 ΔE 0.046
Use #B57A91 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.