#665F21
Closest named color: Greeny Brown (#696006). oklch(47.9% 0.082 102.9), rgb(102, 95, 33).
Aa
White text reads best on this color (6.51:1).
About this color
#665F21 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 48%, its chroma 0.082 and its hue 103°. Its hue sits on the warm side of the wheel. The nearest named color is Greeny Brown (#696006), ΔE 0.017 away. White text reads best on it, at 6.51:1.
| Hue family | Browns |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Greeny Brown (#696006) |
| Black text | 3.22:1 |
| White text | 6.51:1 |
Values
| HEX | #665F21 |
| RGB | rgb(102, 95, 33) |
| HSL | hsl(54, 51%, 26%) |
| OKLCH | oklch(47.9% 0.082 102.9) |
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 #665F21 | 6.51:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #665F21 | 3.22:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #665F21 text on white | 6.51:1 | AA | Lc 82.2 | Fine for body text |
| #665F21 text on black | 3.22:1 | AA large text | Lc -19.7 | 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
#F6F6F2
oklch(97.2% 0.005 106.5)
-
Step 100
100
#EBEAE2
oklch(93.6% 0.011 100.8)
-
Step 200
200
#DBDACA
oklch(88.5% 0.022 103.9)
-
Step 300
300
#C5C2A5
oklch(80.9% 0.04 102.4)
-
Step 400
400
#A8A374
oklch(70.8% 0.064 102.8)
-
Step 500
500
#928C4F
oklch(63.1% 0.082 103.5)
-
Step 600
600
#7D7532
oklch(55.5% 0.089 102.5)
-
Step 700
700 (this color)
#665F21
oklch(47.9% 0.082 102.9)
-
Step 800
800
#565020
oklch(42.6% 0.068 102.2)
-
Step 900
900
#474320
oklch(37.8% 0.053 102.8)
-
Step 950
950
#292713
oklch(26.9% 0.034 103.4)
#665F21 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) | #685C19 | 0.009 |
| Deuteranopia (no green cones) | #6A5F25 | 0.008 |
| Tritanopia (no blue cones) | #6E5852 | 0.076 |
| Achromatopsia (no color) | #5E5E5E | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665F21
#665F21
oklch(47.9% 0.082 102.9)
- #57578A
#57578A
oklch(47.9% 0.081 282.9)
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 #665F21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Brown #696006 ΔE 0.017
- Mud #735C12 ΔE 0.022
- Olive Brown #645403 ΔE 0.033
- Camo Green #526525 ΔE 0.033
- Mud Green #606602 ΔE 0.033
- Dark Moss Green #606C38 ΔE 0.038
- Dark Olive Green #556B2F ΔE 0.039
- Camouflage Green #4B6113 ΔE 0.046
Use #665F21 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.