#B34543
Closest named color: Dull Red (#BB3F3F). oklch(53.9% 0.144 24.2), rgb(179, 69, 67).
Aa
White text reads best on this color (5.45:1).
About this color
#B34543 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.144 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.017 away. White text reads best on it, at 5.45:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.144) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.84:1 |
| White text | 5.45:1 |
Values
| HEX | #B34543 |
| RGB | rgb(179, 69, 67) |
| HSL | hsl(1, 46%, 48%) |
| OKLCH | oklch(53.9% 0.144 24.2) |
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 #B34543 | 5.45:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #B34543 | 3.84:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #B34543 text on white | 5.45:1 | AA | Lc 76.5 | Fine for body text |
| #B34543 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F6E5E4
oklch(93.5% 0.019 21.6)
-
Step 200
200
#F0D1CE
oklch(88.6% 0.035 24.4)
-
Step 300
300
#E8B1AC
oklch(80.9% 0.065 24.5)
-
Step 400
400
#DA8681
oklch(70.7% 0.104 23.7)
-
Step 500
500
#CD6661
oklch(63.1% 0.132 24.4)
-
Step 600
600 (this color)
#B34543
oklch(53.9% 0.144 24.2)
-
Step 700
700
#9F3B39
oklch(49.2% 0.134 24.5)
-
Step 800
800
#81312F
oklch(42.7% 0.111 24.4)
-
Step 900
900
#682C2A
oklch(37.6% 0.087 24)
-
Step 950
950
#3D1B19
oklch(27.1% 0.054 24.7)
#B34543 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) | #615B42 | 0.154 |
| Deuteranopia (no green cones) | #7D7240 | 0.141 |
| Tritanopia (no blue cones) | #C42F45 | 0.044 |
| Achromatopsia (no color) | #696969 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B34543
#B34543
oklch(53.9% 0.144 24.2)
- #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 #B34543, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.017
- Dusty Red #B9484E ΔE 0.019
- Dark Rose #B5485D ΔE 0.035
- Light Maroon #A24857 ΔE 0.041
- Light Burgundy #A8415B ΔE 0.045
- Sinopia #BB3E03 ΔE 0.048
- Rusty Red #AF2F0D ΔE 0.054
- Sienna #A0522D ΔE 0.056
Use #B34543 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.