#B34538
Closest named color: Dull Red (#BB3F3F). oklch(53.8% 0.146 29.4), rgb(179, 69, 56).
Aa
White text reads best on this color (5.49:1).
About this color
#B34538 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.146 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.021 away. White text reads best on it, at 5.49:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.146) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.82:1 |
| White text | 5.49:1 |
Values
| HEX | #B34538 |
| RGB | rgb(179, 69, 56) |
| HSL | hsl(6, 52%, 46%) |
| OKLCH | oklch(53.8% 0.146 29.4) |
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 #B34538 | 5.49:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #B34538 | 3.82:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #B34538 text on white | 5.49:1 | AA | Lc 76.6 | Fine for body text |
| #B34538 text on black | 3.82:1 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E5E3
oklch(93.5% 0.019 25.6)
-
Step 200
200
#F0D1CB
oklch(88.5% 0.036 30.8)
-
Step 300
300
#E8B1A8
oklch(80.8% 0.066 29.2)
-
Step 400
400
#DA877A
oklch(70.7% 0.105 29.5)
-
Step 500
500
#CE6658
oklch(63.1% 0.135 29.3)
-
Step 600
600 (this color)
#B34538
oklch(53.8% 0.146 29.4)
-
Step 700
700
#9F3B2F
oklch(49% 0.136 29.6)
-
Step 800
800
#813228
oklch(42.7% 0.112 29.7)
-
Step 900
900
#682D25
oklch(37.7% 0.087 29.6)
-
Step 950
950
#3D1B16
oklch(27% 0.055 29.8)
#B34538 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) | #625A36 | 0.153 |
| Deuteranopia (no green cones) | #7E7235 | 0.140 |
| Tritanopia (no blue cones) | #C42D42 | 0.050 |
| Achromatopsia (no color) | #696969 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B34538
#B34538
oklch(53.8% 0.146 29.4)
- #007C8B
#007C8B
oklch(53.7% 0.093 209.5)
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 #B34538, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.021
- Dusty Red #B9484E ΔE 0.030
- Sinopia #BB3E03 ΔE 0.036
- Rusty Red #AF2F0D ΔE 0.046
- Brick Orange #C14A09 ΔE 0.047
- Sienna #A0522D ΔE 0.047
- Dark Rose #B5485D ΔE 0.048
- Cinnamon #AC4F06 ΔE 0.050
Use #B34538 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.