#B66527
Closest named color: Copper (#B66325). oklch(58.9% 0.127 54), rgb(182, 101, 39).
Aa
Black text reads best on this color (4.87:1).
About this color
#B66527 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.127 and its hue 54°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.005 away. Black text reads best on it, at 4.87:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.127) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 4.87:1 |
| White text | 4.30:1 |
Values
| HEX | #B66527 |
| RGB | rgb(182, 101, 39) |
| HSL | hsl(26, 65%, 43%) |
| OKLCH | oklch(58.9% 0.127 54) |
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 #B66527 | 4.30:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #B66527 | 4.87:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #B66527 text on white | 4.30:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #B66527 text on black | 4.87:1 | AA | Lc -32.3 | Non-text elements, placeholder text |
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
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F3E7E0
oklch(93.6% 0.016 52.6)
-
Step 200
200
#EBD4C6
oklch(88.5% 0.032 53.5)
-
Step 300
300
#DFB79E
oklch(80.8% 0.058 53.7)
-
Step 400
400
#CE9169
oklch(70.8% 0.092 53.9)
-
Step 500
500
#C0743F
oklch(63.1% 0.118 53.7)
-
Step 600
600 (this color)
#B66527
oklch(58.9% 0.127 54)
-
Step 700
700
#934A0A
oklch(49.1% 0.119 53.6)
-
Step 800
800
#773D0E
oklch(42.6% 0.098 53.7)
-
Step 900
900
#603515
oklch(37.7% 0.076 54.3)
-
Step 950
950
#391F0E
oklch(27% 0.049 52.4)
#B66527 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) | #7D6F1E | 0.104 |
| Deuteranopia (no green cones) | #908126 | 0.094 |
| Tritanopia (no blue cones) | #C75358 | 0.083 |
| Achromatopsia (no color) | #7A7A7A | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B66527
#B66527
oklch(58.9% 0.127 54)
- #0088BB
#0088BB
oklch(59.1% 0.123 233.9)
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 #B66527, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.005
- Umber #B26400 ΔE 0.020
- Orange Brown #BE6400 ΔE 0.020
- Tiger's Eye #BC6C25 ΔE 0.022
- Orangey Brown #B16002 ΔE 0.022
- Brown Orange #B96902 ΔE 0.022
- Clay Brown #B2713D ΔE 0.029
- Caramel #AF6F09 ΔE 0.035
Use #B66527 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.