#B54543
Closest named color: Dull Red (#BB3F3F). oklch(54.3% 0.146 24.3), rgb(181, 69, 67).
Aa
White text reads best on this color (5.38:1).
About this color
#B54543 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.146 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.014 away. White text reads best on it, at 5.38:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.146) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.89:1 |
| White text | 5.38:1 |
Values
| HEX | #B54543 |
| RGB | rgb(181, 69, 67) |
| HSL | hsl(1, 46%, 49%) |
| OKLCH | oklch(54.3% 0.146 24.3) |
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 #B54543 | 5.38:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #B54543 | 3.89:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #B54543 text on white | 5.38:1 | AA | Lc 76.1 | Fine for body text |
| #B54543 text on black | 3.89:1 | AA large text | Lc -25.7 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E5E4
oklch(93.5% 0.019 21.6)
-
Step 200
200
#F1D0CD
oklch(88.5% 0.037 24)
-
Step 300
300
#E8B1AC
oklch(80.9% 0.065 24.5)
-
Step 400
400
#DB8680
oklch(70.8% 0.106 24.4)
-
Step 500
500
#CE6560
oklch(63.1% 0.134 24.4)
-
Step 600
600 (this color)
#B54543
oklch(54.3% 0.146 24.3)
-
Step 700
700
#A03A38
oklch(49.2% 0.136 24.6)
-
Step 800
800
#82312F
oklch(42.8% 0.113 24.5)
-
Step 900
900
#692C2A
oklch(37.8% 0.088 24.1)
-
Step 950
950
#3E1A19
oklch(27% 0.057 23.2)
#B54543 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) | #625B42 | 0.156 |
| Deuteranopia (no green cones) | #7E7340 | 0.144 |
| Tritanopia (no blue cones) | #C62E46 | 0.045 |
| Achromatopsia (no color) | #6A6A6A | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B54543
#B54543
oklch(54.3% 0.146 24.3)
- #007F88
#007F88
oklch(54.4% 0.093 203.5)
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 #B54543, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.014
- Dusty Red #B9484E ΔE 0.016
- Dark Rose #B5485D ΔE 0.034
- Light Maroon #A24857 ΔE 0.044
- Light Burgundy #A8415B ΔE 0.047
- Sinopia #BB3E03 ΔE 0.048
- Rusty Red #AF2F0D ΔE 0.055
- Brick Orange #C14A09 ΔE 0.056
Use #B54543 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.