#B3412B
Closest named color: Sinopia (#BB3E03). oklch(53.1% 0.153 32.9), rgb(179, 65, 43).
Aa
White text reads best on this color (5.66:1).
About this color
#B3412B is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.153 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.026 away. White text reads best on it, at 5.66:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.153) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.70:1 |
| White text | 5.66:1 |
Values
| HEX | #B3412B |
| RGB | rgb(179, 65, 43) |
| HSL | hsl(10, 61%, 44%) |
| OKLCH | oklch(53.1% 0.153 32.9) |
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 #B3412B | 5.66:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #B3412B | 3.70:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #B3412B text on white | 5.66:1 | AA | Lc 77.4 | Fine for body text |
| #B3412B text on black | 3.70:1 | AA large text | Lc -24.3 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
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)
#B3412B
oklch(53.1% 0.153 32.9)
-
Step 700
700
#A13925
oklch(49% 0.142 32.9)
-
Step 800
800
#833020
oklch(42.6% 0.118 32.9)
-
Step 900
900
#6A2C20
oklch(37.8% 0.092 32.6)
-
Step 950
950
#3E1A13
oklch(26.9% 0.058 32.4)
#B3412B 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) | #615728 | 0.157 |
| Deuteranopia (no green cones) | #7D7027 | 0.144 |
| Tritanopia (no blue cones) | #C5243D | 0.058 |
| Achromatopsia (no color) | #676767 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B3412B
#B3412B
oklch(53.1% 0.153 32.9)
- #00798C
#00798C
oklch(53% 0.093 213.6)
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 #B3412B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.026
- Dull Red #BB3F3F ΔE 0.028
- Rusty Red #AF2F0D ΔE 0.034
- Dusty Red #B9484E ΔE 0.042
- Brick Orange #C14A09 ΔE 0.043
- Cinnamon #AC4F06 ΔE 0.044
- Burnt Umber #A0450E ΔE 0.046
- Sienna #A0522D ΔE 0.047
Use #B3412B 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.