#B54A31
Closest named color: Sinopia (#BB3E03). oklch(54.7% 0.145 34.5), rgb(181, 74, 49).
Aa
White text reads best on this color (5.26:1).
About this color
#B54A31 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.145 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.030 away. White text reads best on it, at 5.26:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.145) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.98:1 |
| White text | 5.26:1 |
Values
| HEX | #B54A31 |
| RGB | rgb(181, 74, 49) |
| HSL | hsl(11, 57%, 45%) |
| OKLCH | oklch(54.7% 0.145 34.5) |
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 #B54A31 | 5.26:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #B54A31 | 3.98:1 | AA large text | Lc 28.6 | Dividers and decoration only |
| #B54A31 text on white | 5.26:1 | AA | Lc 75.4 | Fine for body text |
| #B54A31 text on black | 3.98:1 | AA large text | Lc -26.3 | 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
#F6E6E2
oklch(93.7% 0.018 34.3)
-
Step 200
200
#F0D1C9
oklch(88.4% 0.037 34.8)
-
Step 300
300
#E7B2A5
oklch(80.8% 0.065 34.2)
-
Step 400
400
#D98874
oklch(70.6% 0.104 34.6)
-
Step 500
500
#CD6850
oklch(63.1% 0.134 34.5)
-
Step 600
600 (this color)
#B54A31
oklch(54.7% 0.145 34.5)
-
Step 700
700
#9E3D26
oklch(49% 0.135 34.7)
-
Step 800
800
#813321
oklch(42.7% 0.112 34.4)
-
Step 900
900
#682E20
oklch(37.8% 0.087 34.8)
-
Step 950
950
#3D1B13
oklch(26.9% 0.056 34.4)
#B54A31 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) | #675D2E | 0.147 |
| Deuteranopia (no green cones) | #82752E | 0.135 |
| Tritanopia (no blue cones) | #C73245 | 0.060 |
| Achromatopsia (no color) | #6C6C6C | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B54A31
#B54A31
oklch(54.7% 0.145 34.5)
- #007E93
#007E93
oklch(54.6% 0.096 214.7)
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 #B54A31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.030
- Dull Red #BB3F3F ΔE 0.032
- Brick Orange #C14A09 ΔE 0.033
- Dusty Red #B9484E ΔE 0.038
- Burnt Siena #B75203 ΔE 0.038
- Burnt Orange #C04E01 ΔE 0.038
- Cinnamon #AC4F06 ΔE 0.038
- Sienna #A0522D ΔE 0.042
Use #B54A31 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.