#669E4F
Closest named color: Flat Green (#699D4C). oklch(64.1% 0.125 137.3), rgb(102, 158, 79).
Aa
Black text reads best on this color (6.56:1).
About this color
#669E4F is a medium-light, moderately saturated green. In OKLCH its lightness is 64%, its chroma 0.125 and its hue 137°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Flat Green (#699D4C), ΔE 0.004 away. Black text reads best on it, at 6.56:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Flat Green (#699D4C) |
| Black text | 6.56:1 |
| White text | 3.19:1 |
Values
| HEX | #669E4F |
| RGB | rgb(102, 158, 79) |
| HSL | hsl(103, 33%, 46%) |
| OKLCH | oklch(64.1% 0.125 137.3) |
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 #669E4F | 3.19:1 | AA large text | Lc -64.4 | Content text, not long reading |
| Black text on #669E4F | 6.56:1 | AA | Lc 45.0 | Large or bold text, headings |
| #669E4F text on white | 3.19:1 | AA large text | Lc 59.0 | Large or bold text, headings |
| #669E4F text on black | 6.56:1 | AA | Lc -42.7 | 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
#E4EDE1
oklch(93.6% 0.019 137.8)
-
Step 200
200
#CFDFC9
oklch(88.6% 0.034 137.1)
-
Step 300
300
#AECAA4
oklch(80.8% 0.06 137.5)
-
Step 400
400
#83AF72
oklch(70.7% 0.098 137.3)
-
Step 500
500 (this color)
#669E4F
oklch(64.1% 0.125 137.3)
-
Step 600
600
#49852D
oklch(55.6% 0.136 137.2)
-
Step 700
700
#3A701F
oklch(49% 0.126 137.1)
-
Step 800
800
#305C1C
oklch(42.8% 0.106 137.4)
-
Step 900
900
#2B4B1D
oklch(37.6% 0.082 137.1)
-
Step 950
950
#1A2C12
oklch(27% 0.051 136.8)
#669E4F 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) | #A39348 | 0.083 |
| Deuteranopia (no green cones) | #9A8E54 | 0.082 |
| Tritanopia (no blue cones) | #64998C | 0.088 |
| Achromatopsia (no color) | #909090 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669E4F
#669E4F
oklch(64.1% 0.125 137.3)
- #AB73BE
#AB73BE
oklch(64.1% 0.124 317.2)
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 #669E4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Green #699D4C ΔE 0.004
- Muted Green #5FA052 ΔE 0.008
- Off Green #6BA353 ΔE 0.016
- Moss #769958 ΔE 0.028
- Drab Green #749551 ΔE 0.030
- Fern #63A950 ΔE 0.032
- Dull Green #74A662 ΔE 0.035
- Mid Green #50A747 ΔE 0.036
Use #669E4F 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.