#665406
Closest named color: Olive Brown (#645403). oklch(45.1% 0.09 94), rgb(102, 84, 6).
Aa
White text reads best on this color (7.40:1).
About this color
#665406 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 45%, its chroma 0.090 and its hue 94°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.004 away. White text reads best on it, at 7.40:1.
| Hue family | Browns |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.090) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.83:1 |
| White text | 7.40:1 |
Values
| HEX | #665406 |
| RGB | rgb(102, 84, 6) |
| HSL | hsl(49, 89%, 21%) |
| OKLCH | oklch(45.1% 0.09 94) |
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 #665406 | 7.40:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #665406 | 2.83:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #665406 text on white | 7.40:1 | AAA | Lc 85.6 | Fine for body text |
| #665406 text on black | 2.83:1 | Fails | Lc -16.5 | 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
#DFD9C4
oklch(88.4% 0.029 93.8)
-
Step 300
300
#CBC19B
oklch(80.9% 0.052 95)
-
Step 400
400
#B2A062
oklch(70.7% 0.084 93.8)
-
Step 500
500
#9F8832
oklch(63.1% 0.108 94)
-
Step 600
600
#897100
oklch(55.5% 0.114 94.1)
-
Step 700
700
#745F00
oklch(49.2% 0.101 93.8)
-
Step 800
800 (this color)
#665406
oklch(45.1% 0.09 94)
-
Step 900
900
#4E410C
oklch(37.8% 0.07 94.5)
-
Step 950
950
#2E260A
oklch(27.1% 0.044 93.2)
#665406 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) | #5E5200 | 0.016 |
| Deuteranopia (no green cones) | #63580D | 0.012 |
| Tritanopia (no blue cones) | #6F4C47 | 0.083 |
| Achromatopsia (no color) | #555555 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665406
#665406
oklch(45.1% 0.09 94)
- #465187
#465187
oklch(45.1% 0.089 273.6)
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 #665406, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.004
- Mud #735C12 ΔE 0.034
- Greeny Brown #696006 ΔE 0.036
- Green Brown #544E03 ΔE 0.038
- Mud Brown #60460F ΔE 0.045
- Army Green #4B5D16 ΔE 0.047
- Medium Brown #7F5112 ΔE 0.048
- Camo Green #526525 ΔE 0.053
Use #665406 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.