#669F53
Closest named color: Flat Green (#699D4C). oklch(64.5% 0.123 138.3), rgb(102, 159, 83).
Aa
Black text reads best on this color (6.64:1).
About this color
#669F53 is a medium-light, moderately saturated green. In OKLCH its lightness is 64%, its chroma 0.123 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Flat Green (#699D4C), ΔE 0.008 away. Black text reads best on it, at 6.64:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Flat Green (#699D4C) |
| Black text | 6.64:1 |
| White text | 3.15:1 |
Values
| HEX | #669F53 |
| RGB | rgb(102, 159, 83) |
| HSL | hsl(105, 31%, 47%) |
| OKLCH | oklch(64.5% 0.123 138.3) |
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 #669F53 | 3.15:1 | AA large text | Lc -64.0 | Content text, not long reading |
| Black text on #669F53 | 6.64:1 | AA | Lc 45.5 | Large or bold text, headings |
| #669F53 text on white | 3.15:1 | AA large text | Lc 58.6 | Large or bold text, headings |
| #669F53 text on black | 6.64:1 | AA | Lc -43.2 | 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 500.
-
Step 50
50
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE2
oklch(93.6% 0.017 140)
-
Step 200
200
#CFDFCA
oklch(88.6% 0.033 138.2)
-
Step 300
300
#AECAA5
oklch(80.8% 0.059 138.1)
-
Step 400
400
#82AF74
oklch(70.6% 0.096 138.4)
-
Step 500
500 (this color)
#669F53
oklch(64.5% 0.123 138.3)
-
Step 600
600
#488531
oklch(55.6% 0.134 138.1)
-
Step 700
700
#397024
oklch(49% 0.123 138.2)
-
Step 800
800
#2F5C1F
oklch(42.8% 0.104 138.4)
-
Step 900
900
#2A4B1F
oklch(37.6% 0.08 138.4)
-
Step 950
950
#192C13
oklch(26.9% 0.051 138.5)
#669F53 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) | #A3944D | 0.082 |
| Deuteranopia (no green cones) | #9B8F58 | 0.082 |
| Tritanopia (no blue cones) | #639A8D | 0.085 |
| Achromatopsia (no color) | #919191 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669F53
#669F53
oklch(64.5% 0.123 138.3)
- #AD74BD
#AD74BD
oklch(64.4% 0.123 318.7)
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 #669F53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Green #699D4C ΔE 0.008
- Muted Green #5FA052 ΔE 0.008
- Off Green #6BA353 ΔE 0.014
- Moss #769958 ΔE 0.027
- Fern #63A950 ΔE 0.030
- Dull Green #74A662 ΔE 0.031
- Drab Green #749551 ΔE 0.031
- Mid Green #50A747 ΔE 0.037
Use #669F53 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.