#645010
Closest named color: Olive Brown (#645403). oklch(44% 0.082 90.3), rgb(100, 80, 16).
Aa
White text reads best on this color (7.78:1).
About this color
#645010 is a dark, moderately saturated brown. In OKLCH its lightness is 44%, its chroma 0.082 and its hue 90°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.015 away. White text reads best on it, at 7.78:1.
| Hue family | Browns |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.69:1 |
| White text | 7.78:1 |
Values
| HEX | #645010 |
| RGB | rgb(100, 80, 16) |
| HSL | hsl(46, 72%, 23%) |
| OKLCH | oklch(44% 0.082 90.3) |
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 #645010 | 7.78:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #645010 | 2.69:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #645010 text on white | 7.78:1 | AAA | Lc 86.9 | Fine for body text |
| #645010 text on black | 2.69:1 | Fails | Lc -15.2 | 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 800.
-
Step 50
50
#F7F5F1
oklch(97.1% 0.006 84.6)
-
Step 100
100
#EDEAE0
oklch(93.7% 0.014 93)
-
Step 200
200
#E0D9C6
oklch(88.6% 0.027 90.1)
-
Step 300
300
#CCC09E
oklch(80.9% 0.048 90.9)
-
Step 400
400
#B39F68
oklch(70.7% 0.077 90.3)
-
Step 500
500
#A0873C
oklch(63.1% 0.099 90.9)
-
Step 600
600
#8B7014
oklch(55.6% 0.107 90.8)
-
Step 700
700
#765D02
oklch(49% 0.099 90.2)
-
Step 800
800 (this color)
#645010
oklch(44% 0.082 90.3)
-
Step 900
900
#4F4013
oklch(37.8% 0.065 90.2)
-
Step 950
950
#2E260D
oklch(27.1% 0.041 91.7)
#645010 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) | #5A4F04 | 0.020 |
| Deuteranopia (no green cones) | #5F5514 | 0.016 |
| Tritanopia (no blue cones) | #6D4844 | 0.076 |
| Achromatopsia (no color) | #525252 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645010
#645010
oklch(44% 0.082 90.3)
- #414F80
#414F80
oklch(43.9% 0.083 270.6)
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 #645010, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.015
- Mud Brown #60460F ΔE 0.031
- Green Brown #544E03 ΔE 0.031
- Mud #735C12 ΔE 0.046
- Greeny Brown #696006 ΔE 0.050
- Medium Brown #7F5112 ΔE 0.051
- Army Green #4B5D16 ΔE 0.053
- Milk Chocolate #7F4E1E ΔE 0.054
Use #645010 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.