#646128
Closest named color: Greeny Brown (#696006). oklch(48.3% 0.078 106.2), rgb(100, 97, 40).
Aa
White text reads best on this color (6.39:1).
About this color
#646128 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 48%, its chroma 0.078 and its hue 106°. Its hue sits on the warm side of the wheel. The nearest named color is Greeny Brown (#696006), ΔE 0.022 away. White text reads best on it, at 6.39:1.
| Hue family | Browns |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.078) |
| Temperature | warm |
| Nearest name | Greeny Brown (#696006) |
| Black text | 3.28:1 |
| White text | 6.39:1 |
Values
| HEX | #646128 |
| RGB | rgb(100, 97, 40) |
| HSL | hsl(57, 43%, 27%) |
| OKLCH | oklch(48.3% 0.078 106.2) |
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 #646128 | 6.39:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #646128 | 3.28:1 | AA large text | Lc 22.3 | Dividers and decoration only |
| #646128 text on white | 6.39:1 | AA | Lc 81.7 | Fine for body text |
| #646128 text on black | 3.28:1 | AA large text | Lc -20.1 | 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
#EAEAE2
oklch(93.5% 0.011 106.6)
-
Step 200
200
#DADACB
oklch(88.4% 0.02 106.8)
-
Step 300
300
#C3C3A7
oklch(81% 0.038 107.2)
-
Step 400
400
#A5A378
oklch(70.6% 0.059 105.6)
-
Step 500
500
#8F8D54
oklch(63.2% 0.078 106.7)
-
Step 600
600
#7A7638
oklch(55.5% 0.084 105.5)
-
Step 700
700 (this color)
#646128
oklch(48.3% 0.078 106.2)
-
Step 800
800
#535124
oklch(42.6% 0.065 106.5)
-
Step 900
900
#454322
oklch(37.6% 0.05 105.5)
-
Step 950
950
#282715
oklch(26.8% 0.031 105.5)
#646128 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) | #695D22 | 0.013 |
| Deuteranopia (no green cones) | #6A602B | 0.011 |
| Tritanopia (no blue cones) | #6B5B54 | 0.070 |
| Achromatopsia (no color) | #5F5F5F | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #646128
#646128
oklch(48.3% 0.078 106.2)
- #5B5788
#5B5788
oklch(48.2% 0.078 286.8)
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 #646128, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Brown #696006 ΔE 0.022
- Mud #735C12 ΔE 0.027
- Camo Green #526525 ΔE 0.030
- Dark Moss Green #606C38 ΔE 0.032
- Mud Green #606602 ΔE 0.034
- Dark Olive Green #556B2F ΔE 0.034
- Olive Brown #645403 ΔE 0.039
- Brown Green #706C11 ΔE 0.045
Use #646128 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.