#B73770
Closest named color: Light Burgundy (#A8415B). oklch(54.1% 0.171 357.2), rgb(183, 55, 112).
Aa
White text reads best on this color (5.53:1).
About this color
#B73770 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.171 and its hue 357°. Its hue sits on the warm side of the wheel. The nearest named color is Light Burgundy (#A8415B), ΔE 0.048 away. White text reads best on it, at 5.53:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.171) |
| Temperature | warm |
| Nearest name | Light Burgundy (#A8415B) |
| Black text | 3.79:1 |
| White text | 5.53:1 |
Values
| HEX | #B73770 |
| RGB | rgb(183, 55, 112) |
| HSL | hsl(333, 54%, 47%) |
| OKLCH | oklch(54.1% 0.171 357.2) |
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 #B73770 | 5.53:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #B73770 | 3.79:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #B73770 text on white | 5.53:1 | AA | Lc 76.6 | Fine for body text |
| #B73770 text on black | 3.79:1 | AA large text | Lc -25.1 | 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
#FCF3F5
oklch(97.2% 0.01 2)
-
Step 100
100
#F7E4EA
oklch(93.6% 0.022 356.3)
-
Step 200
200
#F2CED9
oklch(88.5% 0.043 357.7)
-
Step 300
300
#EAACC1
oklch(80.8% 0.077 356.9)
-
Step 400
400
#DD7EA1
oklch(70.6% 0.124 357.2)
-
Step 500
500
#D15A8A
oklch(63.1% 0.158 357.4)
-
Step 600
600 (this color)
#B73770
oklch(54.1% 0.171 357.2)
-
Step 700
700
#A22D62
oklch(49.2% 0.159 357.1)
-
Step 800
800
#832750
oklch(42.7% 0.132 356.9)
-
Step 900
900
#6A2542
oklch(37.6% 0.103 357.1)
-
Step 950
950
#3E1727
oklch(27% 0.064 356.6)
#B73770 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) | #4F5972 | 0.192 |
| Deuteranopia (no green cones) | #73716D | 0.171 |
| Tritanopia (no blue cones) | #C6294F | 0.054 |
| Achromatopsia (no color) | #686868 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B73770
#B73770
oklch(54.1% 0.171 357.2)
- #00826E
#00826E
oklch(54.2% 0.101 176.9)
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 #B73770, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Burgundy #A8415B ΔE 0.048
- Dark Rose #B5485D ΔE 0.049
- Dark Pink #CB416B ΔE 0.049
- Deep Rose #C74767 ΔE 0.053
- Medium Violet Red #C71585 ΔE 0.058
- Light Maroon #A24857 ΔE 0.066
- Dusty Red #B9484E ΔE 0.069
- Ruby #CA0147 ΔE 0.069
Use #B73770 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.