#B3737F
Closest named color: Mauve (#AE7181). oklch(62.6% 0.082 7.5), rgb(179, 115, 127).
Aa
Black text reads best on this color (5.67:1).
About this color
#B3737F is a medium-light, moderately saturated red. In OKLCH its lightness is 63%, its chroma 0.082 and its hue 7°. Its hue sits on the warm side of the wheel. The nearest named color is Mauve (#AE7181), ΔE 0.012 away. Black text reads best on it, at 5.67:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Mauve (#AE7181) |
| Black text | 5.67:1 |
| White text | 3.70:1 |
Values
| HEX | #B3737F |
| RGB | rgb(179, 115, 127) |
| HSL | hsl(349, 30%, 58%) |
| OKLCH | oklch(62.6% 0.082 7.5) |
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 #B3737F | 3.70:1 | AA large text | Lc -69.9 | Content text, not long reading |
| Black text on #B3737F | 5.67:1 | AA | Lc 39.6 | Non-text elements, placeholder text |
| #B3737F text on white | 3.70:1 | AA large text | Lc 64.4 | Content text, not long reading |
| #B3737F text on black | 5.67:1 | 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
#F9F4F5
oklch(97.1% 0.006 3.3)
-
Step 100
100
#F1E7E8
oklch(93.6% 0.011 10.3)
-
Step 200
200
#E7D3D6
oklch(88.4% 0.023 7.2)
-
Step 300
300
#D9B6BC
oklch(80.8% 0.041 6.4)
-
Step 400
400
#C49099
oklch(70.6% 0.064 7.3)
-
Step 500
500 (this color)
#B3737F
oklch(62.6% 0.082 7.5)
-
Step 600
600
#A05C6A
oklch(55.6% 0.09 7.2)
-
Step 700
700
#884C58
oklch(49.1% 0.082 7.7)
-
Step 800
800
#6F3E48
oklch(42.7% 0.069 7.3)
-
Step 900
900
#5A353C
oklch(37.6% 0.054 7.7)
-
Step 950
950
#351F23
oklch(26.9% 0.035 7.8)
#B3737F 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) | #7D7E7F | 0.090 |
| Deuteranopia (no green cones) | #8D897E | 0.082 |
| Tritanopia (no blue cones) | #BE6E77 | 0.022 |
| Achromatopsia (no color) | #858585 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B3737F
#B3737F
oklch(62.6% 0.082 7.5)
- #449891
#449891
oklch(62.6% 0.082 187.9)
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 #B3737F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mauve #AE7181 ΔE 0.012
- Dusty Rose #C0737A ΔE 0.024
- Dusky Rose #BA6873 ΔE 0.028
- Old Pink #C77986 ΔE 0.040
- Pinkish Brown #B17261 ΔE 0.043
- Brownish Pink #C27E79 ΔE 0.044
- English Lavender #9D8189 ΔE 0.047
- Old Rose #C87F89 ΔE 0.050
Use #B3737F 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.