#B74529
Closest named color: Sinopia (#BB3E03). oklch(54.2% 0.154 34.9), rgb(183, 69, 41).
Aa
White text reads best on this color (5.38:1).
About this color
#B74529 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.154 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.021 away. White text reads best on it, at 5.38:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.154) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.89:1 |
| White text | 5.38:1 |
Values
| HEX | #B74529 |
| RGB | rgb(183, 69, 41) |
| HSL | hsl(12, 63%, 44%) |
| OKLCH | oklch(54.2% 0.154 34.9) |
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 #B74529 | 5.38:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #B74529 | 3.89:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #B74529 text on white | 5.38:1 | AA | Lc 76.0 | Fine for body text |
| #B74529 text on black | 3.89:1 | AA large text | Lc -25.7 | 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
#F1D1C8
oklch(88.5% 0.038 36.2)
-
Step 300
300
#E9B1A3
oklch(80.8% 0.069 34.5)
-
Step 400
400
#DC8671
oklch(70.6% 0.111 34.5)
-
Step 500
500
#D0654B
oklch(63% 0.142 34.8)
-
Step 600
600 (this color)
#B74529
oklch(54.2% 0.154 34.9)
-
Step 700
700
#A13A20
oklch(49.1% 0.142 35.1)
-
Step 800
800
#83311C
oklch(42.7% 0.118 35.4)
-
Step 900
900
#6A2C1D
oklch(37.7% 0.093 34.9)
-
Step 950
950
#3E1B12
oklch(27.1% 0.057 35.5)
#B74529 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) | #655A25 | 0.156 |
| Deuteranopia (no green cones) | #817425 | 0.144 |
| Tritanopia (no blue cones) | #C9283F | 0.062 |
| Achromatopsia (no color) | #6A6A6A | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B74529
#B74529
oklch(54.2% 0.154 34.9)
- #007D92
#007D92
oklch(54.3% 0.096 214.9)
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 #B74529, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.021
- Dull Red #BB3F3F ΔE 0.030
- Brick Orange #C14A09 ΔE 0.031
- Burnt Orange #C04E01 ΔE 0.037
- Burnt Siena #B75203 ΔE 0.039
- Cinnamon #AC4F06 ΔE 0.039
- Dusty Red #B9484E ΔE 0.042
- Rusty Red #AF2F0D ΔE 0.044
Use #B74529 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.