#669E81
Closest named color: Grey Teal (#5E9B8A). oklch(65.2% 0.074 160.9), rgb(102, 158, 129).
Aa
Black text reads best on this color (6.77:1).
About this color
#669E81 is a medium-light, moderately saturated green. In OKLCH its lightness is 65%, its chroma 0.074 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grey Teal (#5E9B8A), ΔE 0.020 away. Black text reads best on it, at 6.77:1.
| Hue family | Greens |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.074) |
| Temperature | in between |
| Nearest name | Grey Teal (#5E9B8A) |
| Black text | 6.77:1 |
| White text | 3.10:1 |
Values
| HEX | #669E81 |
| RGB | rgb(102, 158, 129) |
| HSL | hsl(149, 22%, 51%) |
| OKLCH | oklch(65.2% 0.074 160.9) |
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 #669E81 | 3.10:1 | AA large text | Lc -63.3 | Content text, not long reading |
| Black text on #669E81 | 6.77:1 | AA | Lc 46.2 | Large or bold text, headings |
| #669E81 text on white | 3.10:1 | AA large text | Lc 57.9 | Large or bold text, headings |
| #669E81 text on black | 6.77:1 | AA | Lc -43.9 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E4ECE7
oklch(93.6% 0.011 158.8)
-
Step 200
200
#CEDDD5
oklch(88.4% 0.019 162.9)
-
Step 300
300
#ADC8B9
oklch(80.8% 0.036 161.2)
-
Step 400
400
#81AC95
oklch(70.7% 0.057 161.1)
-
Step 500
500 (this color)
#669E81
oklch(65.2% 0.074 160.9)
-
Step 600
600
#458264
oklch(55.7% 0.08 160.9)
-
Step 700
700
#366E53
oklch(49.2% 0.074 160.9)
-
Step 800
800
#2D5944
oklch(42.6% 0.061 161.5)
-
Step 900
900
#294A39
oklch(37.8% 0.049 160.4)
-
Step 950
950
#192B22
oklch(27% 0.029 161.9)
#669E81 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) | #9D967F | 0.072 |
| Deuteranopia (no green cones) | #939083 | 0.068 |
| Tritanopia (no blue cones) | #5A9E96 | 0.031 |
| Achromatopsia (no color) | #929292 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669E81
#669E81
oklch(65.2% 0.074 160.9)
- #AF7E9D
#AF7E9D
oklch(65.1% 0.074 341)
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 #669E81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Teal #5E9B8A ΔE 0.020
- Dull Teal #5F9E8F ΔE 0.021
- Greeny Grey #7EA07A ΔE 0.030
- Green Grey #77926F ΔE 0.037
- Grey Green #86A17D ΔE 0.040
- Tea #65AB7C ΔE 0.041
- Cadet Blue #5F9EA0 ΔE 0.046
- Dusty Green #76A973 ΔE 0.047
Use #669E81 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.