#66522E
Closest named color: Olive Brown (#645403). oklch(45% 0.058 81.1), rgb(102, 82, 46).
Aa
White text reads best on this color (7.46:1).
About this color
#66522E is a medium-dark, muted brown. In OKLCH its lightness is 45%, its chroma 0.058 and its hue 81°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.038 away. White text reads best on it, at 7.46:1.
| Hue family | Browns |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.058) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.81:1 |
| White text | 7.46:1 |
Values
| HEX | #66522E |
| RGB | rgb(102, 82, 46) |
| HSL | hsl(39, 38%, 29%) |
| OKLCH | oklch(45% 0.058 81.1) |
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 #66522E | 7.46:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #66522E | 2.81:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #66522E text on white | 7.46:1 | AAA | Lc 85.9 | Fine for body text |
| #66522E text on black | 2.81:1 | Fails | Lc -16.1 | 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 800.
-
Step 50
50
#F7F5F2
oklch(97.1% 0.005 78.3)
-
Step 100
100
#EDE9E3
oklch(93.5% 0.009 78.3)
-
Step 200
200
#E0D8CB
oklch(88.5% 0.02 80.1)
-
Step 300
300
#CCBFA8
oklch(80.9% 0.035 82)
-
Step 400
400
#B29E7A
oklch(70.8% 0.055 82.1)
-
Step 500
500
#9F8558
oklch(63% 0.069 80.7)
-
Step 600
600
#8A6F3D
oklch(55.7% 0.076 81.6)
-
Step 700
700
#755C2F
oklch(49% 0.07 80.6)
-
Step 800
800 (this color)
#66522E
oklch(45% 0.058 81.1)
-
Step 900
900
#4E3F25
oklch(37.7% 0.045 80.5)
-
Step 950
950
#2E2516
oklch(27% 0.029 79.8)
#66522E 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) | #5B522B | 0.020 |
| Deuteranopia (no green cones) | #5F572F | 0.018 |
| Tritanopia (no blue cones) | #6E4C49 | 0.051 |
| Achromatopsia (no color) | #555555 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66522E
#66522E
oklch(45% 0.058 81.1)
- #435676
#435676
oklch(45.1% 0.058 260.6)
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 #66522E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.038
- Mud Brown #60460F ΔE 0.042
- Milk Chocolate #7F4E1E ΔE 0.045
- Medium Brown #7F5112 ΔE 0.048
- Mud #735C12 ΔE 0.049
- Green Brown #544E03 ΔE 0.052
- Greeny Brown #696006 ΔE 0.059
- Army Green #4B5D16 ΔE 0.066
Use #66522E 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.