#B43A74
Closest named color: Light Burgundy (#A8415B). oklch(54.1% 0.166 354.9), rgb(180, 58, 116).
Aa
White text reads best on this color (5.52:1).
About this color
#B43A74 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.166 and its hue 355°. 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 5.52:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.166) |
| Temperature | warm |
| Nearest name | Light Burgundy (#A8415B) |
| Black text | 3.79:1 |
| White text | 5.52:1 |
Values
| HEX | #B43A74 |
| RGB | rgb(180, 58, 116) |
| HSL | hsl(331, 51%, 47%) |
| OKLCH | oklch(54.1% 0.166 354.9) |
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 #B43A74 | 5.52:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #B43A74 | 3.79:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #B43A74 text on white | 5.52:1 | AA | Lc 76.7 | Fine for body text |
| #B43A74 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
#FBF3F6
oklch(97.1% 0.009 352.4)
-
Step 100
100
#F7E4EA
oklch(93.6% 0.022 356.3)
-
Step 200
200
#F1CEDA
oklch(88.4% 0.042 355.3)
-
Step 300
300
#E9ADC3
oklch(80.9% 0.075 355.1)
-
Step 400
400
#DB80A4
oklch(70.8% 0.12 355.4)
-
Step 500
500
#CE5C8E
oklch(63% 0.154 354.9)
-
Step 600
600 (this color)
#B43A74
oklch(54.1% 0.166 354.9)
-
Step 700
700
#9F3065
oklch(49.1% 0.154 355)
-
Step 800
800
#812953
oklch(42.7% 0.128 354.5)
-
Step 900
900
#682744
oklch(37.7% 0.099 355.1)
-
Step 950
950
#3D1828
oklch(27% 0.062 354.9)
#B43A74 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) | #4F5A76 | 0.185 |
| Deuteranopia (no green cones) | #717171 | 0.167 |
| Tritanopia (no blue cones) | #C23052 | 0.056 |
| Achromatopsia (no color) | #696969 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B43A74
#B43A74
oklch(54.1% 0.166 354.9)
- #00826B
#00826B
oklch(54.1% 0.103 174.5)
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 #B43A74, 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 0.051
- Dark Pink #CB416B ΔE 0.054
- Deep Rose #C74767 ΔE 0.057
- Medium Violet Red #C71585 ΔE 0.059
- Light Maroon #A24857 ΔE 0.065
- Light Plum #9D5783 ΔE 0.066
- Dusty Red #B9484E ΔE 0.072
Use #B43A74 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.