#B4432C
Closest named color: Sinopia (#BB3E03). oklch(53.5% 0.152 33.3), rgb(180, 67, 44).
Aa
White text reads best on this color (5.55:1).
About this color
#B4432C is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.152 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.025 away. White text reads best on it, at 5.55:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.152) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.77:1 |
| White text | 5.55:1 |
Values
| HEX | #B4432C |
| RGB | rgb(180, 67, 44) |
| HSL | hsl(10, 61%, 44%) |
| OKLCH | oklch(53.5% 0.152 33.3) |
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 #B4432C | 5.55:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #B4432C | 3.77:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #B4432C text on white | 5.55:1 | AA | Lc 76.9 | Fine for body text |
| #B4432C text on black | 3.77:1 | AA large text | Lc -24.8 | 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
#FBF3F1
oklch(97% 0.009 34.3)
-
Step 100
100
#F7E5E1
oklch(93.5% 0.021 32.5)
-
Step 200
200
#F1D1C9
oklch(88.5% 0.038 34.3)
-
Step 300
300
#E9B1A4
oklch(80.8% 0.068 33.4)
-
Step 400
400
#DC8674
oklch(70.6% 0.11 32.6)
-
Step 500
500
#D0654F
oklch(63.1% 0.14 33)
-
Step 600
600 (this color)
#B4432C
oklch(53.5% 0.152 33.3)
-
Step 700
700
#A13A25
oklch(49.1% 0.141 33.3)
-
Step 800
800
#833120
oklch(42.8% 0.117 33.4)
-
Step 900
900
#692C1F
oklch(37.6% 0.091 33.5)
-
Step 950
950
#3E1B13
oklch(27.1% 0.057 34.1)
#B4432C 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) | #625929 | 0.157 |
| Deuteranopia (no green cones) | #7E7228 | 0.144 |
| Tritanopia (no blue cones) | #C6273E | 0.058 |
| Achromatopsia (no color) | #686868 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4432C
#B4432C
oklch(53.5% 0.152 33.3)
- #007B8E
#007B8E
oklch(53.6% 0.094 213.3)
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 #B4432C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.025
- Dull Red #BB3F3F ΔE 0.028
- Rusty Red #AF2F0D ΔE 0.039
- Brick Orange #C14A09 ΔE 0.039
- Dusty Red #B9484E ΔE 0.040
- Cinnamon #AC4F06 ΔE 0.042
- Burnt Orange #C04E01 ΔE 0.045
- Sienna #A0522D ΔE 0.046
Use #B4432C 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.