#B75729
Closest named color: Burnt Siena (#B75203). oklch(56.8% 0.138 44), rgb(183, 87, 41).
Aa
White text reads best on this color (4.76:1).
About this color
#B75729 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 57%, its chroma 0.138 and its hue 44°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Siena (#B75203), ΔE 0.019 away. White text reads best on it, at 4.76:1.
| Hue family | Browns |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.138) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.40:1 |
| White text | 4.76:1 |
Values
| HEX | #B75729 |
| RGB | rgb(183, 87, 41) |
| HSL | hsl(19, 63%, 44%) |
| OKLCH | oklch(56.8% 0.138 44) |
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 #B75729 | 4.76:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #B75729 | 4.40:1 | AA large text | Lc 31.6 | Non-text elements, placeholder text |
| #B75729 text on white | 4.76:1 | AA | Lc 72.5 | Content text, not long reading |
| #B75729 text on black | 4.40:1 | AA large text | Lc -29.2 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F5E6E0
oklch(93.5% 0.018 43.2)
-
Step 200
200
#EED3C7
oklch(88.6% 0.034 45.5)
-
Step 300
300
#E4B5A1
oklch(81% 0.061 44.2)
-
Step 400
400
#D58C6D
oklch(70.7% 0.1 43.7)
-
Step 500
500
#C86E45
oklch(63.2% 0.127 44.3)
-
Step 600
600 (this color)
#B75729
oklch(56.8% 0.138 44)
-
Step 700
700
#9A4317
oklch(49.1% 0.129 43.8)
-
Step 800
800
#7D3816
oklch(42.7% 0.106 44.1)
-
Step 900
900
#653119
oklch(37.7% 0.083 44.1)
-
Step 950
950
#3B1D10
oklch(26.9% 0.052 43.5)
#B75729 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) | #726523 | 0.128 |
| Deuteranopia (no green cones) | #897B27 | 0.117 |
| Tritanopia (no blue cones) | #C9424D | 0.072 |
| Achromatopsia (no color) | #737373 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B75729
#B75729
oklch(56.8% 0.138 44)
- #0083A5
#0083A5
oklch(56.7% 0.107 224.3)
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 #B75729, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.019
- Burnt Orange #C04E01 ΔE 0.025
- Rust Orange #C45508 ΔE 0.027
- Brick Orange #C14A09 ΔE 0.029
- Copper #B66325 ΔE 0.029
- Cinnamon #AC4F06 ΔE 0.034
- Orangey Brown #B16002 ΔE 0.035
- Raw Umber #A75E09 ΔE 0.041
Use #B75729 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.