#665A23
Closest named color: Olive Brown (#645403). oklch(46.7% 0.076 97), rgb(102, 90, 35).
Aa
White text reads best on this color (6.88:1).
About this color
#665A23 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 47%, its chroma 0.076 and its hue 97°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.024 away. White text reads best on it, at 6.88:1.
| Hue family | Browns |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 3.05:1 |
| White text | 6.88:1 |
Values
| HEX | #665A23 |
| RGB | rgb(102, 90, 35) |
| HSL | hsl(49, 49%, 27%) |
| OKLCH | oklch(46.7% 0.076 97) |
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 #665A23 | 6.88:1 | AA | Lc -88.7 | Fine for body text |
| Black text on #665A23 | 3.05:1 | AA large text | Lc 20.3 | Dividers and decoration only |
| #665A23 text on white | 6.88:1 | AA | Lc 83.7 | Fine for body text |
| #665A23 text on black | 3.05:1 | 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
#DDD9CB
oklch(88.5% 0.019 93.7)
-
Step 300
300
#C7C1A7
oklch(80.9% 0.036 96.4)
-
Step 400
400
#ABA177
oklch(70.7% 0.059 96.3)
-
Step 500
500
#968A54
oklch(63.1% 0.075 97.2)
-
Step 600
600
#817338
oklch(55.5% 0.081 96.2)
-
Step 700
700 (this color)
#665A23
oklch(46.7% 0.076 97)
-
Step 800
800
#594F24
oklch(42.7% 0.063 96.5)
-
Step 900
900
#494222
oklch(37.8% 0.049 97.3)
-
Step 950
950
#2B2715
oklch(27.2% 0.031 97.2)
#665A23 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) | #63581D | 0.009 |
| Deuteranopia (no green cones) | #665C26 | 0.006 |
| Tritanopia (no blue cones) | #6E534E | 0.070 |
| Achromatopsia (no color) | #5A5A5A | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665A23
#665A23
oklch(46.7% 0.076 97)
- #4F5684
#4F5684
oklch(46.7% 0.075 276.5)
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 #665A23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.024
- Mud #735C12 ΔE 0.026
- Greeny Brown #696006 ΔE 0.029
- Camo Green #526525 ΔE 0.043
- Medium Brown #7F5112 ΔE 0.047
- Mud Green #606602 ΔE 0.047
- Army Green #4B5D16 ΔE 0.048
- Dark Moss Green #606C38 ΔE 0.051
Use #665A23 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.