#645705
Closest named color: Olive Brown (#645403). oklch(45.6% 0.092 98.9), rgb(100, 87, 5).
Aa
White text reads best on this color (7.22:1).
About this color
#645705 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 46%, its chroma 0.092 and its hue 99°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.009 away. White text reads best on it, at 7.22:1.
| Hue family | Browns |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.092) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.90:1 |
| White text | 7.22:1 |
Values
| HEX | #645705 |
| RGB | rgb(100, 87, 5) |
| HSL | hsl(52, 90%, 21%) |
| OKLCH | oklch(45.6% 0.092 98.9) |
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 #645705 | 7.22:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #645705 | 2.90:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #645705 text on white | 7.22:1 | AAA | Lc 84.9 | Fine for body text |
| #645705 text on black | 2.90:1 | Fails | Lc -17.1 | 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
#F6F6F0
oklch(97.1% 0.008 106.5)
-
Step 100
100
#ECEADF
oklch(93.6% 0.015 98.3)
-
Step 200
200
#DEDAC4
oklch(88.6% 0.03 98.5)
-
Step 300
300
#C9C29A
oklch(81% 0.054 99.2)
-
Step 400
400
#AEA261
oklch(70.8% 0.087 99.1)
-
Step 500
500
#9A8A30
oklch(63.1% 0.11 99.1)
-
Step 600
600
#857300
oklch(55.6% 0.115 98.3)
-
Step 700
700
#6F6100
oklch(49.1% 0.102 99.4)
-
Step 800
800 (this color)
#645705
oklch(45.6% 0.092 98.9)
-
Step 900
900
#4B420A
oklch(37.7% 0.072 99.5)
-
Step 950
950
#2C2709
oklch(27.1% 0.046 99.8)
#645705 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) | #615400 | 0.011 |
| Deuteranopia (no green cones) | #64590D | 0.006 |
| Tritanopia (no blue cones) | #6D4F49 | 0.085 |
| Achromatopsia (no color) | #575757 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645705
#645705
oklch(45.6% 0.092 98.9)
- #4C5089
#4C5089
oklch(45.5% 0.092 279)
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 #645705, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.009
- Greeny Brown #696006 ΔE 0.028
- Mud #735C12 ΔE 0.032
- Army Green #4B5D16 ΔE 0.040
- Green Brown #544E03 ΔE 0.040
- Mud Green #606602 ΔE 0.045
- Camo Green #526525 ΔE 0.045
- Camouflage Green #4B6113 ΔE 0.045
Use #645705 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.