#64563B
Closest named color: Olive Brown (#645403). oklch(46% 0.045 83.4), rgb(100, 86, 59).
Aa
White text reads best on this color (7.15:1).
About this color
#64563B is a medium-dark, muted brown. In OKLCH its lightness is 46%, its chroma 0.045 and its hue 83°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.050 away. White text reads best on it, at 7.15:1.
| Hue family | Browns |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.045) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.93:1 |
| White text | 7.15:1 |
Values
| HEX | #64563B |
| RGB | rgb(100, 86, 59) |
| HSL | hsl(40, 26%, 31%) |
| OKLCH | oklch(46% 0.045 83.4) |
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 #64563B | 7.15:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #64563B | 2.93:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #64563B text on white | 7.15:1 | AAA | Lc 84.8 | Fine for body text |
| #64563B text on black | 2.93:1 | Fails | Lc -17.2 | 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
#ECE9E5
oklch(93.5% 0.006 75.4)
-
Step 200
200
#DDD9D0
oklch(88.6% 0.013 86.8)
-
Step 300
300
#C7C0B1
oklch(80.9% 0.022 86)
-
Step 400
400
#AB9F89
oklch(70.7% 0.034 82.7)
-
Step 500
500
#96886B
oklch(63.2% 0.045 85.2)
-
Step 600
600
#817153
oklch(55.6% 0.048 82.9)
-
Step 700
700 (this color)
#64563B
oklch(46% 0.045 83.4)
-
Step 800
800
#594D38
oklch(42.6% 0.036 81.4)
-
Step 900
900
#494030
oklch(37.6% 0.029 81.8)
-
Step 950
950
#2B261C
oklch(27.1% 0.019 84.5)
#64563B 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) | #5D5639 | 0.013 |
| Deuteranopia (no green cones) | #60593C | 0.010 |
| Tritanopia (no blue cones) | #6A514F | 0.040 |
| Achromatopsia (no color) | #585858 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64563B
#64563B
oklch(46% 0.045 83.4)
- #4B5871
#4B5871
oklch(45.9% 0.044 263.3)
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 #64563B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.050
- Milk Chocolate #7F4E1E ΔE 0.053
- Mud #735C12 ΔE 0.054
- Medium Brown #7F5112 ΔE 0.056
- Mud Brown #60460F ΔE 0.058
- Greeny Brown #696006 ΔE 0.063
- Green Brown #544E03 ΔE 0.064
- Camo Green #526525 ΔE 0.067
Use #64563B 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.