#665A33
Closest named color: Mud (#735C12). oklch(47% 0.058 92.8), rgb(102, 90, 51).
Aa
White text reads best on this color (6.82:1).
About this color
#665A33 is a medium-dark, muted brown. In OKLCH its lightness is 47%, its chroma 0.058 and its hue 93°. Its hue sits on the warm side of the wheel. The nearest named color is Mud (#735C12), ΔE 0.037 away. White text reads best on it, at 6.82:1.
| Hue family | Browns |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.058) |
| Temperature | warm |
| Nearest name | Mud (#735C12) |
| Black text | 3.07:1 |
| White text | 6.82:1 |
Values
| HEX | #665A33 |
| RGB | rgb(102, 90, 51) |
| HSL | hsl(46, 33%, 30%) |
| OKLCH | oklch(47% 0.058 92.8) |
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 #665A33 | 6.82:1 | AA | Lc -88.5 | Fine for body text |
| Black text on #665A33 | 3.07:1 | AA large text | Lc 20.5 | Dividers and decoration only |
| #665A33 text on white | 6.82:1 | AA | Lc 83.6 | Fine for body text |
| #665A33 text on black | 3.07:1 | AA large text | Lc -18.4 | 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
#ECEAE4
oklch(93.7% 0.008 91.5)
-
Step 200
200
#DCD9CE
oklch(88.5% 0.015 94.2)
-
Step 300
300
#C7C1AD
oklch(81% 0.028 93.2)
-
Step 400
400
#AAA081
oklch(70.6% 0.045 92.3)
-
Step 500
500
#958961
oklch(63.1% 0.058 93.4)
-
Step 600
600
#807348
oklch(55.7% 0.063 93.2)
-
Step 700
700 (this color)
#665A33
oklch(47% 0.058 92.8)
-
Step 800
800
#584E2F
oklch(42.6% 0.048 92.2)
-
Step 900
900
#48412A
oklch(37.6% 0.038 93.2)
-
Step 950
950
#2A2619
oklch(26.9% 0.023 93)
#665A33 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) | #625930 | 0.009 |
| Deuteranopia (no green cones) | #655C34 | 0.006 |
| Tritanopia (no blue cones) | #6D5451 | 0.055 |
| Achromatopsia (no color) | #5B5B5B | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665A33
#665A33
oklch(47% 0.058 92.8)
- #50597C
#50597C
oklch(47.1% 0.058 272.9)
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 #665A33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud #735C12 ΔE 0.037
- Olive Brown #645403 ΔE 0.039
- Greeny Brown #696006 ΔE 0.045
- Medium Brown #7F5112 ΔE 0.049
- Milk Chocolate #7F4E1E ΔE 0.051
- Camo Green #526525 ΔE 0.052
- Dark Moss Green #606C38 ΔE 0.053
- Dark Olive Green #556B2F ΔE 0.058
Use #665A33 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.