#64591D
Closest named color: Olive Brown (#645403). oklch(46.2% 0.08 98.8), rgb(100, 89, 29).
Aa
White text reads best on this color (7.02:1).
About this color
#64591D is a medium-dark, moderately saturated brown. In OKLCH its lightness is 46%, its chroma 0.080 and its hue 99°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.018 away. White text reads best on it, at 7.02:1.
| Hue family | Browns |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.080) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.98:1 |
| White text | 7.02:1 |
Values
| HEX | #64591D |
| RGB | rgb(100, 89, 29) |
| HSL | hsl(51, 55%, 25%) |
| OKLCH | oklch(46.2% 0.08 98.8) |
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 #64591D | 7.02:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #64591D | 2.98:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #64591D text on white | 7.02:1 | AAA | Lc 84.3 | Fine for body text |
| #64591D text on black | 2.98:1 | 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
#F6F5F2
oklch(97% 0.004 91.4)
-
Step 100
100
#EBEAE2
oklch(93.6% 0.011 100.8)
-
Step 200
200
#DCDACA
oklch(88.6% 0.022 101)
-
Step 300
300
#C7C1A5
oklch(80.8% 0.039 97.2)
-
Step 400
400
#AAA275
oklch(70.8% 0.062 99.3)
-
Step 500
500
#958A50
oklch(63% 0.079 98.8)
-
Step 600
600
#807434
oklch(55.6% 0.086 98.8)
-
Step 700
700 (this color)
#64591D
oklch(46.2% 0.08 98.8)
-
Step 800
800
#584F21
oklch(42.6% 0.066 98.4)
-
Step 900
900
#484220
oklch(37.6% 0.052 99.5)
-
Step 950
950
#2A2713
oklch(27% 0.034 100.9)
#64591D 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) | #625715 | 0.009 |
| Deuteranopia (no green cones) | #655B20 | 0.006 |
| Tritanopia (no blue cones) | #6C524D | 0.074 |
| Achromatopsia (no color) | #595959 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64591D
#64591D
oklch(46.2% 0.08 98.8)
- #4F5385
#4F5385
oklch(46.1% 0.081 279.2)
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 #64591D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.018
- Mud #735C12 ΔE 0.029
- Greeny Brown #696006 ΔE 0.029
- Camo Green #526525 ΔE 0.042
- Army Green #4B5D16 ΔE 0.043
- Mud Green #606602 ΔE 0.046
- Green Brown #544E03 ΔE 0.047
- Camouflage Green #4B6113 ΔE 0.048
Use #64591D 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.