#B7522B
Closest named color: Burnt Siena (#B75203). oklch(56.1% 0.141 40.5), rgb(183, 82, 43).
Aa
White text reads best on this color (4.93:1).
About this color
#B7522B is a medium-dark, vivid orange. In OKLCH its lightness is 56%, its chroma 0.141 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Siena (#B75203), ΔE 0.022 away. White text reads best on it, at 4.93:1.
| Hue family | Oranges |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.141) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.25:1 |
| White text | 4.93:1 |
Values
| HEX | #B7522B |
| RGB | rgb(183, 82, 43) |
| HSL | hsl(17, 62%, 44%) |
| OKLCH | oklch(56.1% 0.141 40.5) |
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 #B7522B | 4.93:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #B7522B | 4.25:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #B7522B text on white | 4.93:1 | AA | Lc 73.5 | Content text, not long reading |
| #B7522B text on black | 4.25:1 | AA large text | Lc -28.2 | 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
#F5E6E1
oklch(93.5% 0.018 39.4)
-
Step 200
200
#EFD2C8
oklch(88.5% 0.035 40)
-
Step 300
300
#E6B4A2
oklch(81% 0.064 40.7)
-
Step 400
400
#D78A6F
oklch(70.6% 0.102 40.1)
-
Step 500
500
#CA6B48
oklch(63% 0.13 40.6)
-
Step 600
600 (this color)
#B7522B
oklch(56.1% 0.141 40.5)
-
Step 700
700
#9C411C
oklch(49.2% 0.131 40.8)
-
Step 800
800
#7F361A
oklch(42.8% 0.109 40.4)
-
Step 900
900
#66301B
oklch(37.7% 0.084 41.2)
-
Step 950
950
#3C1C11
oklch(26.9% 0.054 39.5)
#B7522B 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) | #6E6226 | 0.136 |
| Deuteranopia (no green cones) | #877928 | 0.125 |
| Tritanopia (no blue cones) | #C93C4A | 0.068 |
| Achromatopsia (no color) | #707070 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B7522B
#B7522B
oklch(56.1% 0.141 40.5)
- #00829E
#00829E
oklch(56.1% 0.102 220)
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 #B7522B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.022
- Burnt Orange #C04E01 ΔE 0.024
- Brick Orange #C14A09 ΔE 0.025
- Cinnamon #AC4F06 ΔE 0.032
- Rust Orange #C45508 ΔE 0.033
- Sinopia #BB3E03 ΔE 0.037
- Copper #B66325 ΔE 0.041
- Sienna #A0522D ΔE 0.044
Use #B7522B 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.