#645130
Closest named color: Mud Brown (#60460F). oklch(44.6% 0.055 80.4), rgb(100, 81, 48).
Aa
White text reads best on this color (7.60:1).
About this color
#645130 is a dark, muted brown. In OKLCH its lightness is 45%, its chroma 0.055 and its hue 80°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.041 away. White text reads best on it, at 7.60:1.
| Hue family | Browns |
| Lightness | dark (45%) |
| Chroma | muted (0.055) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.76:1 |
| White text | 7.60:1 |
Values
| HEX | #645130 |
| RGB | rgb(100, 81, 48) |
| HSL | hsl(38, 35%, 29%) |
| OKLCH | oklch(44.6% 0.055 80.4) |
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 #645130 | 7.60:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #645130 | 2.76:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #645130 text on white | 7.60:1 | AAA | Lc 86.4 | Fine for body text |
| #645130 text on black | 2.76:1 | Fails | Lc -15.7 | 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 800.
-
Step 50
50
#F7F5F2
oklch(97.1% 0.005 78.3)
-
Step 100
100
#EDE9E3
oklch(93.5% 0.009 78.3)
-
Step 200
200
#DFD8CC
oklch(88.4% 0.018 81.3)
-
Step 300
300
#CBBFAA
oklch(80.9% 0.032 81.7)
-
Step 400
400
#B19E7D
oklch(70.7% 0.051 81.3)
-
Step 500
500
#9E865C
oklch(63.2% 0.065 81.1)
-
Step 600
600
#896F41
oklch(55.6% 0.071 80.7)
-
Step 700
700
#745D33
oklch(49.2% 0.066 81.3)
-
Step 800
800 (this color)
#645130
oklch(44.6% 0.055 80.4)
-
Step 900
900
#4D3F27
oklch(37.6% 0.042 80.4)
-
Step 950
950
#2D2517
oklch(26.9% 0.027 81.1)
#645130 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) | #59512D | 0.020 |
| Deuteranopia (no green cones) | #5E5631 | 0.017 |
| Tritanopia (no blue cones) | #6B4B49 | 0.048 |
| Achromatopsia (no color) | #545454 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645130
#645130
oklch(44.6% 0.055 80.4)
- #435573
#435573
oklch(44.7% 0.054 260.4)
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 #645130, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.041
- Olive Brown #645403 ΔE 0.041
- Milk Chocolate #7F4E1E ΔE 0.049
- Green Brown #544E03 ΔE 0.052
- Medium Brown #7F5112 ΔE 0.053
- Mud #735C12 ΔE 0.055
- Greeny Brown #696006 ΔE 0.064
- Army Green #4B5D16 ΔE 0.067
Use #645130 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.