#645107
Closest named color: Olive Brown (#645403). oklch(44.2% 0.087 92.5), rgb(100, 81, 7).
Aa
White text reads best on this color (7.71:1).
About this color
#645107 is a dark, moderately saturated brown. In OKLCH its lightness is 44%, its chroma 0.087 and its hue 93°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.010 away. White text reads best on it, at 7.71:1.
| Hue family | Browns |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.087) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.72:1 |
| White text | 7.71:1 |
Values
| HEX | #645107 |
| RGB | rgb(100, 81, 7) |
| HSL | hsl(48, 87%, 21%) |
| OKLCH | oklch(44.2% 0.087 92.5) |
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 #645107 | 7.71:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #645107 | 2.72:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #645107 text on white | 7.71:1 | AAA | Lc 86.6 | Fine for body text |
| #645107 text on black | 2.72:1 | Fails | Lc -15.4 | 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
#F7F5F0
oklch(97% 0.007 88.6)
-
Step 100
100
#EDEADF
oklch(93.6% 0.015 94.2)
-
Step 200
200
#DFD9C5
oklch(88.5% 0.028 93.1)
-
Step 300
300
#CCC09C
oklch(80.8% 0.05 91.8)
-
Step 400
400
#B2A064
oklch(70.8% 0.082 93.3)
-
Step 500
500
#A08736
oklch(63.1% 0.104 91.9)
-
Step 600
600
#8B7001
oklch(55.5% 0.113 92)
-
Step 700
700
#755E00
oklch(49.1% 0.1 92.1)
-
Step 800
800 (this color)
#645107
oklch(44.2% 0.087 92.5)
-
Step 900
900
#4E400F
oklch(37.6% 0.068 92.5)
-
Step 950
950
#2E260B
oklch(27.1% 0.043 92.8)
#645107 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) | #5B5000 | 0.018 |
| Deuteranopia (no green cones) | #60550D | 0.012 |
| Tritanopia (no blue cones) | #6D4944 | 0.080 |
| Achromatopsia (no color) | #535353 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645107
#645107
oklch(44.2% 0.087 92.5)
- #434F83
#434F83
oklch(44.2% 0.087 272.6)
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 #645107, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.010
- Green Brown #544E03 ΔE 0.031
- Mud Brown #60460F ΔE 0.035
- Mud #735C12 ΔE 0.043
- Greeny Brown #696006 ΔE 0.046
- Army Green #4B5D16 ΔE 0.049
- Medium Brown #7F5112 ΔE 0.052
- Milk Chocolate #7F4E1E ΔE 0.056
Use #645107 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.