#669C4C
Closest named color: Flat Green (#699D4C). oklch(63.6% 0.125 136.4), rgb(102, 156, 76).
Aa
Black text reads best on this color (6.42:1).
About this color
#669C4C is a medium-light, moderately saturated green. In OKLCH its lightness is 64%, its chroma 0.125 and its hue 136°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Flat Green (#699D4C), ΔE 0.005 away. Black text reads best on it, at 6.42:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Flat Green (#699D4C) |
| Black text | 6.42:1 |
| White text | 3.26:1 |
Values
| HEX | #669C4C |
| RGB | rgb(102, 156, 76) |
| HSL | hsl(101, 34%, 45%) |
| OKLCH | oklch(63.6% 0.125 136.4) |
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 #669C4C | 3.26:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #669C4C | 6.42:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #669C4C text on white | 3.26:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #669C4C text on black | 6.42:1 | AA | Lc -41.8 | 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 500.
-
Step 50
50
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E5EDE1
oklch(93.7% 0.018 134.9)
-
Step 200
200
#CFDFC9
oklch(88.6% 0.034 137.1)
-
Step 300
300
#AFCAA3
oklch(80.8% 0.061 136.1)
-
Step 400
400
#84AF71
oklch(70.7% 0.099 136.4)
-
Step 500
500 (this color)
#669C4C
oklch(63.6% 0.125 136.4)
-
Step 600
600
#4B852B
oklch(55.7% 0.137 136.3)
-
Step 700
700
#3C701D
oklch(49.1% 0.127 136.2)
-
Step 800
800
#325B1B
oklch(42.6% 0.104 136.2)
-
Step 900
900
#2C4B1C
oklch(37.6% 0.082 136.2)
-
Step 950
950
#1A2C12
oklch(27% 0.051 136.8)
#669C4C 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) | #A19145 | 0.081 |
| Deuteranopia (no green cones) | #998C51 | 0.081 |
| Tritanopia (no blue cones) | #64978A | 0.089 |
| Achromatopsia (no color) | #8E8E8E | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669C4C
#669C4C
oklch(63.6% 0.125 136.4)
- #A972BE
#A972BE
oklch(63.7% 0.125 316.3)
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 #669C4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Green #699D4C ΔE 0.005
- Muted Green #5FA052 ΔE 0.012
- Off Green #6BA353 ΔE 0.022
- Drab Green #749551 ΔE 0.028
- Moss #769958 ΔE 0.028
- Fern #63A950 ΔE 0.037
- Mid Green #50A747 ΔE 0.039
- Dull Green #74A662 ΔE 0.040
Use #669C4C 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.