#664530
Closest named color: Mud Brown (#60460F). oklch(42.2% 0.056 53.1), rgb(102, 69, 48).
Aa
White text reads best on this color (8.54:1).
About this color
#664530 is a dark, muted brown. In OKLCH its lightness is 42%, its chroma 0.056 and its hue 53°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.040 away. White text reads best on it, at 8.54:1.
| Hue family | Browns |
| Lightness | dark (42%) |
| Chroma | muted (0.056) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.45:1 |
| White text | 8.54:1 |
Values
| HEX | #664530 |
| RGB | rgb(102, 69, 48) |
| HSL | hsl(23, 36%, 29%) |
| OKLCH | oklch(42.2% 0.056 53.1) |
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 #664530 | 8.54:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #664530 | 2.45:1 | Fails | Lc 14.7 | Not readable |
| #664530 text on white | 8.54:1 | AAA | Lc 89.3 | Fine for body text |
| #664530 text on black | 2.45:1 | Fails | Lc -13.0 | Not readable |
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
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E4
oklch(93.5% 0.009 52.1)
-
Step 200
200
#E3D6CE
oklch(88.4% 0.018 54)
-
Step 300
300
#D2BBAD
oklch(80.8% 0.033 53.4)
-
Step 400
400
#BC9882
oklch(70.7% 0.053 53)
-
Step 500
500
#AA7F63
oklch(63.2% 0.067 54.2)
-
Step 600
600
#95674A
oklch(55.5% 0.073 52.9)
-
Step 700
700
#7F563B
oklch(49.1% 0.068 53.9)
-
Step 800
800 (this color)
#664530
oklch(42.2% 0.056 53.1)
-
Step 900
900
#543B2B
oklch(37.6% 0.044 53.6)
-
Step 950
950
#31231A
oklch(27% 0.027 54)
#664530 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) | #4E482E | 0.044 |
| Deuteranopia (no green cones) | #564F30 | 0.040 |
| Tritanopia (no blue cones) | #6E3F40 | 0.037 |
| Achromatopsia (no color) | #4C4C4C | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664530
#664530
oklch(42.2% 0.056 53.1)
- #2C5367
#2C5367
oklch(42.2% 0.055 232.5)
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 #664530, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.040
- Purple Brown #673A3F ΔE 0.045
- Brownish Purple #76424E ΔE 0.059
- Milk Chocolate #7F4E1E ΔE 0.061
- Green Brown #544E03 ΔE 0.068
- Olive Brown #645403 ΔE 0.068
- Medium Brown #7F5112 ΔE 0.070
- Chestnut #742802 ΔE 0.071
Use #664530 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.