#B43B26
Closest named color: Sinopia (#BB3E03). oklch(52.5% 0.161 32.2), rgb(180, 59, 38).
Aa
White text reads best on this color (5.84:1).
About this color
#B43B26 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.161 and its hue 32°. 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 5.84:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.161) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.59:1 |
| White text | 5.84:1 |
Values
| HEX | #B43B26 |
| RGB | rgb(180, 59, 38) |
| HSL | hsl(9, 65%, 43%) |
| OKLCH | oklch(52.5% 0.161 32.2) |
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 #B43B26 | 5.84:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #B43B26 | 3.59:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #B43B26 text on white | 5.84:1 | AA | Lc 78.2 | Fine for body text |
| #B43B26 text on black | 3.59:1 | AA large text | Lc -23.6 | 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
#F8E5E1
oklch(93.6% 0.022 31.8)
-
Step 200
200
#F2D0C9
oklch(88.4% 0.04 31.6)
-
Step 300
300
#EBB0A3
oklch(80.8% 0.072 32.7)
-
Step 400
400
#DF8472
oklch(70.6% 0.116 32.1)
-
Step 500
500
#D3624D
oklch(63% 0.147 32.2)
-
Step 600
600 (this color)
#B43B26
oklch(52.5% 0.161 32.2)
-
Step 700
700
#A43622
oklch(49.1% 0.149 32.5)
-
Step 800
800
#852E1E
oklch(42.7% 0.123 32.6)
-
Step 900
900
#6B2A1E
oklch(37.6% 0.096 32.3)
-
Step 950
950
#3F1912
oklch(26.9% 0.061 32)
#B43B26 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) | #5E5423 | 0.167 |
| Deuteranopia (no green cones) | #7C6F21 | 0.153 |
| Tritanopia (no blue cones) | #C61637 | 0.058 |
| Achromatopsia (no color) | #656565 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B43B26
#B43B26
oklch(52.5% 0.161 32.2)
- #007889
#007889
oklch(52.6% 0.092 211.8)
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 #B43B26, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.026
- Rusty Red #AF2F0D ΔE 0.026
- Dull Red #BB3F3F ΔE 0.030
- Firebrick #B22222 ΔE 0.037
- Rust Red #AA2704 ΔE 0.042
- Rufous #AE2012 ΔE 0.043
- Brick #A03623 ΔE 0.044
- Russet #A13905 ΔE 0.045
Use #B43B26 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.