#B37591
Closest named color: Mauve (#AE7181). oklch(63.6% 0.086 351.2), rgb(179, 117, 145).
Aa
Black text reads best on this color (5.87:1).
About this color
#B37591 is a medium-light, moderately saturated red. In OKLCH its lightness is 64%, its chroma 0.086 and its hue 351°. Its hue sits on the warm side of the wheel. The nearest named color is Mauve (#AE7181), ΔE 0.025 away. Black text reads best on it, at 5.87:1.
| Hue family | Reds |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.086) |
| Temperature | warm |
| Nearest name | Mauve (#AE7181) |
| Black text | 5.87:1 |
| White text | 3.57:1 |
Values
| HEX | #B37591 |
| RGB | rgb(179, 117, 145) |
| HSL | hsl(333, 29%, 58%) |
| OKLCH | oklch(63.6% 0.086 351.2) |
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 #B37591 | 3.57:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #B37591 | 5.87:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #B37591 text on white | 3.57:1 | AA large text | Lc 63.2 | Content text, not long reading |
| #B37591 text on black | 5.87:1 | AA | Lc -38.4 | 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
#F9F4F6
oklch(97.2% 0.006 350.8)
-
Step 100
100
#F1E7EB
oklch(93.7% 0.012 351)
-
Step 200
200
#E6D3DB
oklch(88.5% 0.024 350.2)
-
Step 300
300
#D7B6C4
oklch(80.9% 0.042 350.6)
-
Step 400
400
#C290A6
oklch(70.8% 0.067 350.8)
-
Step 500
500 (this color)
#B37591
oklch(63.6% 0.086 351.2)
-
Step 600
600
#9C5C7A
oklch(55.6% 0.092 350.9)
-
Step 700
700
#864B67
oklch(49.2% 0.087 350.9)
-
Step 800
800
#6D3E54
oklch(42.8% 0.072 351.1)
-
Step 900
900
#583545
oklch(37.7% 0.055 351.1)
-
Step 950
950
#341F28
oklch(27% 0.036 352.4)
#B37591 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) | #7B8192 | 0.091 |
| Deuteranopia (no green cones) | #8A8B8F | 0.085 |
| Tritanopia (no blue cones) | #BC737F | 0.029 |
| Achromatopsia (no color) | #878787 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B37591
#B37591
oklch(63.6% 0.086 351.2)
- #4E9C84
#4E9C84
oklch(63.6% 0.086 171.1)
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 #B37591, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mauve #AE7181 ΔE 0.025
- Dusty Rose #C0737A ΔE 0.039
- Old Pink #C77986 ΔE 0.042
- Dusky Rose #BA6873 ΔE 0.046
- Dusty Lavender #AC86A8 ΔE 0.047
- Dusky Pink #CC7A8B ΔE 0.048
- Heather #A484AC ΔE 0.050
- Old Rose #C87F89 ΔE 0.050
Use #B37591 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.