#B34231
Closest named color: Dull Red (#BB3F3F). oklch(53.3% 0.151 31.1), rgb(179, 66, 49).
Aa
White text reads best on this color (5.61:1).
About this color
#B34231 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.151 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.024 away. White text reads best on it, at 5.61:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.151) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.74:1 |
| White text | 5.61:1 |
Values
| HEX | #B34231 |
| RGB | rgb(179, 66, 49) |
| HSL | hsl(8, 57%, 45%) |
| OKLCH | oklch(53.3% 0.151 31.1) |
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 #B34231 | 5.61:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #B34231 | 3.74:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #B34231 text on white | 5.61:1 | AA | Lc 77.2 | Fine for body text |
| #B34231 text on black | 3.74:1 | AA large text | Lc -24.5 | 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
#F7E5E2
oklch(93.5% 0.02 28.9)
-
Step 200
200
#F1D1CA
oklch(88.6% 0.037 32.4)
-
Step 300
300
#E9B1A6
oklch(80.9% 0.068 31.2)
-
Step 400
400
#DC8677
oklch(70.7% 0.109 30.6)
-
Step 500
500
#D06553
oklch(63.1% 0.139 31.1)
-
Step 600
600 (this color)
#B34231
oklch(53.3% 0.151 31.1)
-
Step 700
700
#A13A2A
oklch(49.2% 0.14 31.3)
-
Step 800
800
#833124
oklch(42.8% 0.116 31.3)
-
Step 900
900
#692C22
oklch(37.7% 0.09 31.2)
-
Step 950
950
#3E1A14
oklch(26.9% 0.058 31)
#B34231 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) | #61582F | 0.156 |
| Deuteranopia (no green cones) | #7D712D | 0.144 |
| Tritanopia (no blue cones) | #C5273F | 0.055 |
| Achromatopsia (no color) | #676767 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B34231
#B34231
oklch(53.3% 0.151 31.1)
- #007A8B
#007A8B
oklch(53.2% 0.092 211.6)
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 #B34231, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.024
- Sinopia #BB3E03 ΔE 0.030
- Dusty Red #B9484E ΔE 0.036
- Rusty Red #AF2F0D ΔE 0.038
- Brick Orange #C14A09 ΔE 0.045
- Cinnamon #AC4F06 ΔE 0.047
- Sienna #A0522D ΔE 0.047
- Firebrick #B22222 ΔE 0.048
Use #B34231 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.