#B37C91
Closest named color: Mauve (#AE7181). oklch(64.8% 0.074 354.7), rgb(179, 124, 145).
Aa
Black text reads best on this color (6.20:1).
About this color
#B37C91 is a medium-light, moderately saturated red. In OKLCH its lightness is 65%, its chroma 0.074 and its hue 355°. Its hue sits on the warm side of the wheel. The nearest named color is Mauve (#AE7181), ΔE 0.033 away. Black text reads best on it, at 6.20:1.
| Hue family | Reds |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.074) |
| Temperature | warm |
| Nearest name | Mauve (#AE7181) |
| Black text | 6.20:1 |
| White text | 3.38:1 |
Values
| HEX | #B37C91 |
| RGB | rgb(179, 124, 145) |
| HSL | hsl(337, 27%, 59%) |
| OKLCH | oklch(64.8% 0.074 354.7) |
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 #B37C91 | 3.38:1 | AA large text | Lc -66.7 | Content text, not long reading |
| Black text on #B37C91 | 6.20:1 | AA | Lc 42.9 | Non-text elements, placeholder text |
| #B37C91 text on white | 3.38:1 | AA large text | Lc 61.2 | Content text, not long reading |
| #B37C91 text on black | 6.20:1 | AA | Lc -40.5 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#F0E7EA
oklch(93.6% 0.011 354.9)
-
Step 200
200
#E5D4DA
oklch(88.5% 0.02 354.1)
-
Step 300
300
#D5B7C2
oklch(80.8% 0.037 353.9)
-
Step 400
400
#BF92A2
oklch(70.7% 0.058 355.5)
-
Step 500
500 (this color)
#B37C91
oklch(64.8% 0.074 354.7)
-
Step 600
600
#985F76
oklch(55.5% 0.08 354.2)
-
Step 700
700
#824E63
oklch(49% 0.075 354.5)
-
Step 800
800
#6A4051
oklch(42.7% 0.063 354.3)
-
Step 900
900
#563743
oklch(37.7% 0.048 354.8)
-
Step 950
950
#322027
oklch(26.9% 0.03 354.3)
#B37C91 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) | #828692 | 0.079 |
| Deuteranopia (no green cones) | #8F8F90 | 0.073 |
| Tritanopia (no blue cones) | #BB7A83 | 0.023 |
| Achromatopsia (no color) | #8C8C8C | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B37C91
#B37C91
oklch(64.8% 0.074 354.7)
- #5B9E8C
#5B9E8C
oklch(64.9% 0.074 174.7)
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 #B37C91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mauve #AE7181 ΔE 0.033
- Old Pink #C77986 ΔE 0.036
- Dusty Lavender #AC86A8 ΔE 0.036
- Dusty Rose #C0737A ΔE 0.038
- Old Rose #C87F89 ΔE 0.040
- English Lavender #9D8189 ΔE 0.041
- Dusky Pink #CC7A8B ΔE 0.043
- Heather #A484AC ΔE 0.044
Use #B37C91 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.