#665F37
Closest named color: Mud (#735C12). oklch(48.2% 0.059 99.6), rgb(102, 95, 55).
Aa
White text reads best on this color (6.44:1).
About this color
#665F37 is a medium-dark, muted brown. In OKLCH its lightness is 48%, its chroma 0.059 and its hue 100°. Its hue sits on the warm side of the wheel. The nearest named color is Mud (#735C12), ΔE 0.035 away. White text reads best on it, at 6.44:1.
| Hue family | Browns |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.059) |
| Temperature | warm |
| Nearest name | Mud (#735C12) |
| Black text | 3.25:1 |
| White text | 6.44:1 |
Values
| HEX | #665F37 |
| RGB | rgb(102, 95, 55) |
| HSL | hsl(51, 30%, 31%) |
| OKLCH | oklch(48.2% 0.059 99.6) |
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 #665F37 | 6.44:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #665F37 | 3.25:1 | AA large text | Lc 22.1 | Dividers and decoration only |
| #665F37 text on white | 6.44:1 | AA | Lc 82.0 | Fine for body text |
| #665F37 text on black | 3.25:1 | AA large text | Lc -19.9 | 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 700.
-
Step 50
50
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#EBEAE4
oklch(93.6% 0.008 98.9)
-
Step 200
200
#DBD9CE
oklch(88.4% 0.015 98.3)
-
Step 300
300
#C5C1AD
oklch(80.9% 0.028 97.7)
-
Step 400
400
#A7A281
oklch(70.8% 0.046 100.3)
-
Step 500
500
#928B62
oklch(63.2% 0.058 99.6)
-
Step 600
600
#7C7448
oklch(55.5% 0.063 99.2)
-
Step 700
700 (this color)
#665F37
oklch(48.2% 0.059 99.6)
-
Step 800
800
#555030
oklch(42.8% 0.049 100.5)
-
Step 900
900
#46422A
oklch(37.6% 0.038 99.9)
-
Step 950
950
#292719
oklch(27% 0.024 101)
#665F37 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) | #665D34 | 0.006 |
| Deuteranopia (no green cones) | #686039 | 0.005 |
| Tritanopia (no blue cones) | #6C5A55 | 0.053 |
| Achromatopsia (no color) | #5E5E5E | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665F37
#665F37
oklch(48.2% 0.059 99.6)
- #575B7F
#575B7F
oklch(48.2% 0.058 279.1)
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 #665F37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud #735C12 ΔE 0.035
- Dark Moss Green #606C38 ΔE 0.039
- Greeny Brown #696006 ΔE 0.041
- Camo Green #526525 ΔE 0.046
- Olive Brown #645403 ΔE 0.047
- Dark Olive Green #556B2F ΔE 0.047
- Dirt Brown #836539 ΔE 0.054
- Mud Green #606602 ΔE 0.054
Use #665F37 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.