#B03571
Closest named color: Light Burgundy (#A8415B). oklch(52.8% 0.168 354.5), rgb(176, 53, 113).
Aa
White text reads best on this color (5.84:1).
About this color
#B03571 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.168 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Light Burgundy (#A8415B), ΔE 0.047 away. White text reads best on it, at 5.84:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.168) |
| Temperature | warm |
| Nearest name | Light Burgundy (#A8415B) |
| Black text | 3.59:1 |
| White text | 5.84:1 |
Values
| HEX | #B03571 |
| RGB | rgb(176, 53, 113) |
| HSL | hsl(331, 54%, 45%) |
| OKLCH | oklch(52.8% 0.168 354.5) |
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 #B03571 | 5.84:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #B03571 | 3.59:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #B03571 text on white | 5.84:1 | AA | Lc 78.2 | Fine for body text |
| #B03571 text on black | 3.59:1 | AA large text | Lc -23.6 | 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
#FBF3F6
oklch(97.1% 0.009 352.4)
-
Step 100
100
#F7E4EB
oklch(93.6% 0.023 353.2)
-
Step 200
200
#F1CEDB
oklch(88.5% 0.043 353.6)
-
Step 300
300
#E9ADC3
oklch(80.9% 0.075 355.1)
-
Step 400
400
#DB7FA5
oklch(70.7% 0.122 354.4)
-
Step 500
500
#CE5C8F
oklch(63.1% 0.154 354.4)
-
Step 600
600 (this color)
#B03571
oklch(52.8% 0.168 354.5)
-
Step 700
700
#9F2F66
oklch(49% 0.156 354.3)
-
Step 800
800
#822953
oklch(42.8% 0.129 354.9)
-
Step 900
900
#692645
oklch(37.7% 0.102 354.3)
-
Step 950
950
#3E1728
oklch(27% 0.065 355)
#B03571 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) | #4B5673 | 0.187 |
| Deuteranopia (no green cones) | #6D6D6E | 0.168 |
| Tritanopia (no blue cones) | #BE2A4E | 0.058 |
| Achromatopsia (no color) | #656565 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B03571
#B03571
oklch(52.8% 0.168 354.5)
- #007E67
#007E67
oklch(52.9% 0.101 174)
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 #B03571, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Burgundy #A8415B ΔE 0.047
- Dark Rose #B5485D ΔE 0.057
- Medium Violet Red #C71585 ΔE 0.061
- Dark Pink #CB416B ΔE 0.065
- Light Maroon #A24857 ΔE 0.065
- Raspberry #B00149 ΔE 0.066
- Violet Red #A50055 ΔE 0.067
- Deep Rose #C74767 ΔE 0.067
Use #B03571 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.