#645828
Closest named color: Olive Brown (#645403). oklch(46.1% 0.069 95.5), rgb(100, 88, 40).
Aa
White text reads best on this color (7.07:1).
About this color
#645828 is a medium-dark, muted brown. In OKLCH its lightness is 46%, its chroma 0.069 and its hue 96°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.026 away. White text reads best on it, at 7.07:1.
| Hue family | Browns |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.069) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.96:1 |
| White text | 7.07:1 |
Values
| HEX | #645828 |
| RGB | rgb(100, 88, 40) |
| HSL | hsl(48, 43%, 27%) |
| OKLCH | oklch(46.1% 0.069 95.5) |
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 #645828 | 7.07:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #645828 | 2.96:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #645828 text on white | 7.07:1 | AAA | Lc 84.5 | Fine for body text |
| #645828 text on black | 2.96:1 | Fails | Lc -17.5 | 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
#F6F5F2
oklch(97% 0.004 91.4)
-
Step 100
100
#ECEAE3
oklch(93.7% 0.01 93.6)
-
Step 200
200
#DDD9CC
oklch(88.5% 0.018 92.7)
-
Step 300
300
#C7C1A9
oklch(80.9% 0.033 95.5)
-
Step 400
400
#AAA17B
oklch(70.7% 0.053 96.3)
-
Step 500
500
#968A59
oklch(63.2% 0.069 96)
-
Step 600
600
#80733F
oklch(55.5% 0.073 95.7)
-
Step 700
700 (this color)
#645828
oklch(46.1% 0.069 95.5)
-
Step 800
800
#584F29
oklch(42.7% 0.057 96.4)
-
Step 900
900
#494226
oklch(37.9% 0.044 95.8)
-
Step 950
950
#2B2616
oklch(26.9% 0.028 92.7)
#645828 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) | #605623 | 0.011 |
| Deuteranopia (no green cones) | #635A2A | 0.006 |
| Tritanopia (no blue cones) | #6C524D | 0.062 |
| Achromatopsia (no color) | #585858 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645828
#645828
oklch(46.1% 0.069 95.5)
- #4D557F
#4D557F
oklch(46.1% 0.069 275.1)
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 #645828, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.026
- Mud #735C12 ΔE 0.034
- Greeny Brown #696006 ΔE 0.039
- Camo Green #526525 ΔE 0.048
- Medium Brown #7F5112 ΔE 0.049
- Green Brown #544E03 ΔE 0.049
- Army Green #4B5D16 ΔE 0.049
- Milk Chocolate #7F4E1E ΔE 0.052
Use #645828 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.