#664013
Closest named color: Mud Brown (#60460F). oklch(40.7% 0.079 66.2), rgb(102, 64, 19).
Aa
White text reads best on this color (9.09:1).
About this color
#664013 is a dark, moderately saturated brown. In OKLCH its lightness is 41%, its chroma 0.079 and its hue 66°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.021 away. White text reads best on it, at 9.09:1.
| Hue family | Browns |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.30:1 |
| White text | 9.09:1 |
Values
| HEX | #664013 |
| RGB | rgb(102, 64, 19) |
| HSL | hsl(33, 69%, 24%) |
| OKLCH | oklch(40.7% 0.079 66.2) |
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 #664013 | 9.09:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #664013 | 2.30:1 | Fails | Lc 13.3 | Not readable |
| #664013 text on white | 9.09:1 | AAA | Lc 90.7 | Preferred for body text |
| #664013 text on black | 2.30:1 | Fails | Lc -11.6 | 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
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#F0E8E1
oklch(93.5% 0.013 63.9)
-
Step 200
200
#E5D6C8
oklch(88.4% 0.025 65.5)
-
Step 300
300
#D6BBA2
oklch(80.9% 0.046 64.9)
-
Step 400
400
#C0986F
oklch(70.7% 0.073 66.9)
-
Step 500
500
#B07E48
oklch(63.2% 0.094 66.8)
-
Step 600
600
#9B6629
oklch(55.6% 0.102 66.4)
-
Step 700
700
#85541B
oklch(49.1% 0.096 65.6)
-
Step 800
800 (this color)
#664013
oklch(40.7% 0.079 66.2)
-
Step 900
900
#583B1B
oklch(37.9% 0.062 66.7)
-
Step 950
950
#332211
oklch(26.8% 0.038 64.9)
#664013 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) | #4C430D | 0.051 |
| Deuteranopia (no green cones) | #554C14 | 0.045 |
| Tritanopia (no blue cones) | #703737 | 0.061 |
| Achromatopsia (no color) | #484848 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664013
#664013
oklch(40.7% 0.079 66.2)
- #214D72
#214D72
oklch(40.8% 0.079 246.7)
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 #664013, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.021
- Green Brown #544E03 ΔE 0.055
- Chestnut #742802 ΔE 0.059
- Olive Brown #645403 ΔE 0.061
- Purple Brown #673A3F ΔE 0.065
- Milk Chocolate #7F4E1E ΔE 0.065
- Medium Brown #7F5112 ΔE 0.071
- Saddle Brown #8B4513 ΔE 0.076
Use #664013 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.