#66813D
Closest named color: Swamp (#698339). oklch(56.6% 0.1 127.2), rgb(102, 129, 61).
Aa
Black text reads best on this color (4.77:1).
About this color
#66813D is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.100 and its hue 127°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Swamp (#698339), ΔE 0.009 away. Black text reads best on it, at 4.77:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Swamp (#698339) |
| Black text | 4.77:1 |
| White text | 4.40:1 |
Values
| HEX | #66813D |
| RGB | rgb(102, 129, 61) |
| HSL | hsl(84, 36%, 37%) |
| OKLCH | oklch(56.6% 0.1 127.2) |
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 #66813D | 4.40:1 | AA large text | Lc -75.9 | Fine for body text |
| Black text on #66813D | 4.77:1 | AA | Lc 33.6 | Non-text elements, placeholder text |
| #66813D text on white | 4.40:1 | AA large text | Lc 70.4 | Content text, not long reading |
| #66813D text on black | 4.77:1 | AA | Lc -31.2 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F4F6F2
oklch(97.1% 0.006 128.5)
-
Step 100
100
#E7ECE2
oklch(93.7% 0.014 128.6)
-
Step 200
200
#D4DCCB
oklch(88.4% 0.024 127.6)
-
Step 300
300
#B9C6A8
oklch(80.8% 0.044 126.5)
-
Step 400
400
#94A979
oklch(70.6% 0.071 127.3)
-
Step 500
500
#7A9456
oklch(63.1% 0.092 127.4)
-
Step 600
600 (this color)
#66813D
oklch(56.6% 0.1 127.2)
-
Step 700
700
#526A2C
oklch(49% 0.093 127.2)
-
Step 800
800
#435726
oklch(42.8% 0.077 127.7)
-
Step 900
900
#394723
oklch(37.6% 0.059 126.5)
-
Step 950
950
#212A15
oklch(27% 0.039 127.7)
#66813D 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) | #877937 | 0.050 |
| Deuteranopia (no green cones) | #837841 | 0.050 |
| Tritanopia (no blue cones) | #697C71 | 0.078 |
| Achromatopsia (no color) | #787878 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66813D
#66813D
oklch(56.6% 0.1 127.2)
- #8666A4
#8666A4
oklch(56.7% 0.099 307.2)
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 #66813D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Swamp #698339 ΔE 0.009
- Military Green #667C3E ΔE 0.015
- Khaki Green #728639 ΔE 0.024
- Dark Sage #598556 ΔE 0.029
- Moss Green #658B38 ΔE 0.032
- Murky Green #6C7A0E ΔE 0.034
- Fern Green #548D44 ΔE 0.037
- Muddy Green #657432 ΔE 0.037
Use #66813D 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.