#B54343
Closest named color: Dull Red (#BB3F3F). oklch(54% 0.149 23.5), rgb(181, 67, 67).
Aa
White text reads best on this color (5.45:1).
About this color
#B54343 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.149 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.012 away. White text reads best on it, at 5.45:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.149) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.84:1 |
| White text | 5.45:1 |
Values
| HEX | #B54343 |
| RGB | rgb(181, 67, 67) |
| HSL | hsl(0, 46%, 49%) |
| OKLCH | oklch(54% 0.149 23.5) |
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 #B54343 | 5.45:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #B54343 | 3.84:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #B54343 text on white | 5.45:1 | AA | Lc 76.4 | Fine for body text |
| #B54343 text on black | 3.84:1 | AA large text | Lc -25.3 | 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
#F7E5E4
oklch(93.6% 0.02 21.4)
-
Step 200
200
#F1D0CD
oklch(88.5% 0.037 24)
-
Step 300
300
#E9B0AC
oklch(80.8% 0.067 23.2)
-
Step 400
400
#DB8580
oklch(70.6% 0.107 23.7)
-
Step 500
500
#CF6461
oklch(63.1% 0.136 23.4)
-
Step 600
600 (this color)
#B54343
oklch(54% 0.149 23.5)
-
Step 700
700
#A03839
oklch(49% 0.138 23.2)
-
Step 800
800
#82302F
oklch(42.7% 0.114 23.9)
-
Step 900
900
#692B2A
oklch(37.7% 0.089 23.3)
-
Step 950
950
#3E1A19
oklch(27% 0.057 23.2)
#B54343 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) | #605A42 | 0.160 |
| Deuteranopia (no green cones) | #7D7240 | 0.146 |
| Tritanopia (no blue cones) | #C62B44 | 0.044 |
| Achromatopsia (no color) | #696969 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B54343
#B54343
oklch(54% 0.149 23.5)
- #007E87
#007E87
oklch(54.1% 0.092 203.6)
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 #B54343, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.012
- Dusty Red #B9484E ΔE 0.017
- Dark Rose #B5485D ΔE 0.034
- Light Maroon #A24857 ΔE 0.044
- Light Burgundy #A8415B ΔE 0.045
- Sinopia #BB3E03 ΔE 0.049
- Rusty Red #AF2F0D ΔE 0.054
- Firebrick #B22222 ΔE 0.054
Use #B54343 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.