#645F46
Closest named color: Dark Moss Green (#606C38). oklch(48.3% 0.038 98.1), rgb(100, 95, 70).
Aa
White text reads best on this color (6.42:1).
About this color
#645F46 is a medium-dark, muted brown. In OKLCH its lightness is 48%, its chroma 0.038 and its hue 98°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.050 away. White text reads best on it, at 6.42:1.
| Hue family | Browns |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.038) |
| Temperature | warm |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.26:1 |
| White text | 6.42:1 |
Values
| HEX | #645F46 |
| RGB | rgb(100, 95, 70) |
| HSL | hsl(50, 18%, 33%) |
| OKLCH | oklch(48.3% 0.038 98.1) |
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 #645F46 | 6.42:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #645F46 | 3.26:1 | AA large text | Lc 22.1 | Dividers and decoration only |
| #645F46 text on white | 6.42:1 | AA | Lc 81.9 | Fine for body text |
| #645F46 text on black | 3.26:1 | AA large text | Lc -20.0 | 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
#F6F5F4
oklch(97.1% 0.002 67.8)
-
Step 100
100
#EBEAE6
oklch(93.7% 0.005 95.1)
-
Step 200
200
#DBD9D2
oklch(88.5% 0.01 93.6)
-
Step 300
300
#C3C1B4
oklch(80.9% 0.018 99.7)
-
Step 400
400
#A5A18C
oklch(70.7% 0.03 98.2)
-
Step 500
500
#8F8A70
oklch(63.1% 0.038 98.3)
-
Step 600
600
#797458
oklch(55.6% 0.042 99.1)
-
Step 700
700 (this color)
#645F46
oklch(48.3% 0.038 98.1)
-
Step 800
800
#534F3B
oklch(42.6% 0.032 98.1)
-
Step 900
900
#454233
oklch(37.7% 0.025 98)
-
Step 950
950
#28271E
oklch(27.1% 0.016 102.2)
#645F46 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) | #645D44 | 0.006 |
| Deuteranopia (no green cones) | #655F47 | 0.002 |
| Tritanopia (no blue cones) | #695B58 | 0.035 |
| Achromatopsia (no color) | #5F5F5F | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645F46
#645F46
oklch(48.3% 0.038 98.1)
- #595D74
#595D74
oklch(48.4% 0.037 277.2)
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 #645F46, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.050
- Dim Gray #696969 ΔE 0.054
- Mud #735C12 ΔE 0.054
- Dark Taupe #7F684E ΔE 0.055
- Dirt Brown #836539 ΔE 0.059
- Cocoa #875F42 ΔE 0.060
- Dark Olive Green #556B2F ΔE 0.060
- Camo Green #526525 ΔE 0.060
Use #645F46 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.