#669C58
Closest named color: Flat Green (#699D4C). oklch(63.8% 0.113 139.4), rgb(102, 156, 88).
Aa
Black text reads best on this color (6.46:1).
About this color
#669C58 is a medium-light, moderately saturated green. In OKLCH its lightness is 64%, its chroma 0.113 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Flat Green (#699D4C), ΔE 0.015 away. Black text reads best on it, at 6.46:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Flat Green (#699D4C) |
| Black text | 6.46:1 |
| White text | 3.25:1 |
Values
| HEX | #669C58 |
| RGB | rgb(102, 156, 88) |
| HSL | hsl(108, 28%, 48%) |
| OKLCH | oklch(63.8% 0.113 139.4) |
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 #669C58 | 3.25:1 | AA large text | Lc -65.1 | Content text, not long reading |
| Black text on #669C58 | 6.46:1 | AA | Lc 44.4 | Non-text elements, placeholder text |
| #669C58 text on white | 3.25:1 | AA large text | Lc 59.7 | Large or bold text, headings |
| #669C58 text on black | 6.46:1 | AA | Lc -42.0 | 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
#E5EDE2
oklch(93.7% 0.017 137)
-
Step 200
200
#CFDECB
oklch(88.4% 0.03 139.1)
-
Step 300
300
#AFCAA8
oklch(81% 0.055 139.3)
-
Step 400
400
#84AE79
oklch(70.6% 0.088 139.2)
-
Step 500
500 (this color)
#669C58
oklch(63.8% 0.113 139.4)
-
Step 600
600
#4A843A
oklch(55.6% 0.123 139.3)
-
Step 700
700
#3B702C
oklch(49.2% 0.115 139.3)
-
Step 800
800
#315B26
oklch(42.7% 0.094 139.5)
-
Step 900
900
#2C4B23
oklch(37.8% 0.074 139)
-
Step 950
950
#1A2C15
oklch(27% 0.047 139.1)
#669C58 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) | #A09253 | 0.079 |
| Deuteranopia (no green cones) | #988D5C | 0.078 |
| Tritanopia (no blue cones) | #63988B | 0.075 |
| Achromatopsia (no color) | #8F8F8F | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669C58
#669C58
oklch(63.8% 0.113 139.4)
- #A974B7
#A974B7
oklch(63.7% 0.114 319.1)
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 #669C58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Green #699D4C ΔE 0.015
- Muted Green #5FA052 ΔE 0.017
- Moss #769958 ΔE 0.020
- Drab Green #749551 ΔE 0.023
- Off Green #6BA353 ΔE 0.024
- Dull Green #74A662 ΔE 0.035
- Fern #63A950 ΔE 0.042
- Light Forest Green #4F9153 ΔE 0.043
Use #669C58 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.