#645836
Closest named color: Olive Brown (#645403). oklch(46.3% 0.052 90.7), rgb(100, 88, 54).
Aa
White text reads best on this color (7.02:1).
About this color
#645836 is a medium-dark, muted brown. In OKLCH its lightness is 46%, its chroma 0.052 and its hue 91°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.042 away. White text reads best on it, at 7.02:1.
| Hue family | Browns |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.052) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.99:1 |
| White text | 7.02:1 |
Values
| HEX | #645836 |
| RGB | rgb(100, 88, 54) |
| HSL | hsl(44, 30%, 30%) |
| OKLCH | oklch(46.3% 0.052 90.7) |
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 #645836 | 7.02:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #645836 | 2.99:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #645836 text on white | 7.02:1 | AAA | Lc 84.3 | Fine for body text |
| #645836 text on black | 2.99:1 | Fails | Lc -17.7 | 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
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#ECEAE4
oklch(93.7% 0.008 91.5)
-
Step 200
200
#DCD9CF
oklch(88.5% 0.014 93)
-
Step 300
300
#C7C0AF
oklch(80.9% 0.025 88.3)
-
Step 400
400
#AAA084
oklch(70.7% 0.041 90.7)
-
Step 500
500
#958965
oklch(63.1% 0.053 91.8)
-
Step 600
600
#80724D
oklch(55.6% 0.056 89.6)
-
Step 700
700 (this color)
#645836
oklch(46.3% 0.052 90.7)
-
Step 800
800
#584E33
oklch(42.7% 0.043 90)
-
Step 900
900
#48412D
oklch(37.7% 0.033 91)
-
Step 950
950
#2A261A
oklch(26.9% 0.022 91.8)
#645836 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) | #5F5733 | 0.010 |
| Deuteranopia (no green cones) | #625A37 | 0.006 |
| Tritanopia (no blue cones) | #6B5350 | 0.048 |
| Achromatopsia (no color) | #595959 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645836
#645836
oklch(46.3% 0.052 90.7)
- #4E5877
#4E5877
oklch(46.5% 0.052 270.5)
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 #645836, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.042
- Mud #735C12 ΔE 0.045
- Milk Chocolate #7F4E1E ΔE 0.052
- Medium Brown #7F5112 ΔE 0.053
- Greeny Brown #696006 ΔE 0.053
- Camo Green #526525 ΔE 0.058
- Mud Brown #60460F ΔE 0.058
- Dark Moss Green #606C38 ΔE 0.060
Use #645836 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.