#665A1D
Closest named color: Olive Brown (#645403). oklch(46.7% 0.081 98), rgb(102, 90, 29).
Aa
White text reads best on this color (6.89:1).
About this color
#665A1D is a medium-dark, moderately saturated brown. In OKLCH its lightness is 47%, its chroma 0.081 and its hue 98°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.021 away. White text reads best on it, at 6.89:1.
| Hue family | Browns |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.081) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 3.04:1 |
| White text | 6.89:1 |
Values
| HEX | #665A1D |
| RGB | rgb(102, 90, 29) |
| HSL | hsl(50, 56%, 26%) |
| OKLCH | oklch(46.7% 0.081 98) |
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 #665A1D | 6.89:1 | AA | Lc -88.7 | Fine for body text |
| Black text on #665A1D | 3.04:1 | AA large text | Lc 20.3 | Dividers and decoration only |
| #665A1D text on white | 6.89:1 | AA | Lc 83.8 | Fine for body text |
| #665A1D text on black | 3.04:1 | AA large text | Lc -18.2 | 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 700.
-
Step 50
50
#F6F5F2
oklch(97% 0.004 91.4)
-
Step 100
100
#ECEAE2
oklch(93.6% 0.011 95.2)
-
Step 200
200
#DDDACA
oklch(88.6% 0.022 98.1)
-
Step 300
300
#C7C1A5
oklch(80.8% 0.039 97.2)
-
Step 400
400
#ABA174
oklch(70.6% 0.062 97.1)
-
Step 500
500
#968A4F
oklch(63% 0.08 98.1)
-
Step 600
600
#817432
oklch(55.7% 0.088 98.3)
-
Step 700
700 (this color)
#665A1D
oklch(46.7% 0.081 98)
-
Step 800
800
#594F20
oklch(42.7% 0.067 97.4)
-
Step 900
900
#494220
oklch(37.8% 0.052 98)
-
Step 950
950
#2B2713
oklch(27.1% 0.034 98.3)
#665A1D 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) | #635815 | 0.010 |
| Deuteranopia (no green cones) | #665C20 | 0.006 |
| Tritanopia (no blue cones) | #6E534D | 0.074 |
| Achromatopsia (no color) | #5A5A5A | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665A1D
#665A1D
oklch(46.7% 0.081 98)
- #4F5587
#4F5587
oklch(46.7% 0.081 277.5)
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 #665A1D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.021
- Mud #735C12 ΔE 0.024
- Greeny Brown #696006 ΔE 0.025
- Camo Green #526525 ΔE 0.041
- Mud Green #606602 ΔE 0.044
- Army Green #4B5D16 ΔE 0.045
- Medium Brown #7F5112 ΔE 0.048
- Camouflage Green #4B6113 ΔE 0.049
Use #665A1D 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.