#645142
Closest named color: Milk Chocolate (#7F4E1E). oklch(45% 0.035 60), rgb(100, 81, 66).
Aa
White text reads best on this color (7.50:1).
About this color
#645142 is a dark, muted brown. In OKLCH its lightness is 45%, its chroma 0.035 and its hue 60°. Its hue sits on the warm side of the wheel. The nearest named color is Milk Chocolate (#7F4E1E), ΔE 0.060 away. White text reads best on it, at 7.50:1.
| Hue family | Browns |
| Lightness | dark (45%) |
| Chroma | muted (0.035) |
| Temperature | warm |
| Nearest name | Milk Chocolate (#7F4E1E) |
| Black text | 2.79:1 |
| White text | 7.50:1 |
Values
| HEX | #645142 |
| RGB | rgb(100, 81, 66) |
| HSL | hsl(26, 20%, 33%) |
| OKLCH | oklch(45% 0.035 60) |
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 #645142 | 7.50:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #645142 | 2.79:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #645142 text on white | 7.50:1 | AAA | Lc 86.1 | Fine for body text |
| #645142 text on black | 2.79:1 | Fails | Lc -16.0 | 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 800.
-
Step 50
50
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EDE9E6
oklch(93.6% 0.006 59.6)
-
Step 200
200
#DFD7D2
oklch(88.4% 0.011 54.5)
-
Step 300
300
#CBBEB4
oklch(80.9% 0.02 60.1)
-
Step 400
400
#B09C8D
oklch(70.6% 0.032 59.1)
-
Step 500
500
#9D8471
oklch(63.1% 0.041 59.2)
-
Step 600
600
#876D59
oklch(55.5% 0.044 59.2)
-
Step 700
700
#735B49
oklch(49% 0.042 58.4)
-
Step 800
800 (this color)
#645142
oklch(45% 0.035 60)
-
Step 900
900
#4D3E33
oklch(37.6% 0.028 58)
-
Step 950
950
#2D251E
oklch(27.1% 0.017 63.2)
#645142 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) | #575241 | 0.022 |
| Deuteranopia (no green cones) | #5B5642 | 0.021 |
| Tritanopia (no blue cones) | #6A4D4D | 0.027 |
| Achromatopsia (no color) | #555555 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645142
#645142
oklch(45% 0.035 60)
- #445867
#445867
oklch(45% 0.035 240.9)
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 #645142, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Milk Chocolate #7F4E1E ΔE 0.060
- Mud Brown #60460F ΔE 0.060
- Brownish Purple #76424E ΔE 0.060
- Purple Brown #673A3F ΔE 0.065
- Olive Brown #645403 ΔE 0.066
- Medium Brown #7F5112 ΔE 0.067
- Mud #735C12 ΔE 0.073
- Green Brown #544E03 ΔE 0.074
Use #645142 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.