#B4537F
Closest named color: Light Plum (#9D5783). oklch(57.6% 0.135 353.7), rgb(180, 83, 127).
Aa
White text reads best on this color (4.68:1).
About this color
#B4537F is a medium-dark, moderately saturated red. In OKLCH its lightness is 58%, its chroma 0.135 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Light Plum (#9D5783), ΔE 0.043 away. White text reads best on it, at 4.68:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.135) |
| Temperature | warm |
| Nearest name | Light Plum (#9D5783) |
| Black text | 4.48:1 |
| White text | 4.68:1 |
Values
| HEX | #B4537F |
| RGB | rgb(180, 83, 127) |
| HSL | hsl(333, 39%, 52%) |
| OKLCH | oklch(57.6% 0.135 353.7) |
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 #B4537F | 4.68:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #B4537F | 4.48:1 | AA large text | Lc 32.0 | Non-text elements, placeholder text |
| #B4537F text on white | 4.68:1 | AA | Lc 72.0 | Content text, not long reading |
| #B4537F text on black | 4.48:1 | AA large text | Lc -29.6 | 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 600.
-
Step 50
50
#FAF3F6
oklch(97% 0.008 349.2)
-
Step 100
100
#F4E5EB
oklch(93.6% 0.018 351.2)
-
Step 200
200
#ECD0DB
oklch(88.4% 0.034 352.1)
-
Step 300
300
#E1B1C3
oklch(80.9% 0.06 354.1)
-
Step 400
400
#D087A5
oklch(70.7% 0.097 353.6)
-
Step 500
500
#C2678F
oklch(63% 0.124 353.5)
-
Step 600
600 (this color)
#B4537F
oklch(57.6% 0.135 353.7)
-
Step 700
700
#953D66
oklch(49.1% 0.127 353.7)
-
Step 800
800
#793353
oklch(42.7% 0.105 353.8)
-
Step 900
900
#622E45
oklch(37.8% 0.081 353.8)
-
Step 950
950
#391B28
oklch(26.9% 0.051 353.6)
#B4537F 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) | #606980 | 0.148 |
| Deuteranopia (no green cones) | #7A7A7D | 0.133 |
| Tritanopia (no blue cones) | #C04E64 | 0.044 |
| Achromatopsia (no color) | #747474 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4537F
#B4537F
oklch(57.6% 0.135 353.7)
- #008E74
#008E74
oklch(57.7% 0.11 173.7)
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 #B4537F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Plum #9D5783 ΔE 0.043
- Deep Rose #C74767 ΔE 0.049
- Dark Rose #B5485D ΔE 0.049
- Dark Pink #CB416B ΔE 0.053
- Dusky Rose #BA6873 ΔE 0.061
- Light Burgundy #A8415B ΔE 0.063
- Dusty Red #B9484E ΔE 0.068
- Light Maroon #A24857 ΔE 0.069
Use #B4537F 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.