#669B88
Closest named color: Grey Teal (#5E9B8A). oklch(64.7% 0.063 169.8), rgb(102, 155, 136).
Aa
Black text reads best on this color (6.60:1).
About this color
#669B88 is a medium-light, muted green. In OKLCH its lightness is 65%, its chroma 0.063 and its hue 170°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grey Teal (#5E9B8A), ΔE 0.008 away. Black text reads best on it, at 6.60:1.
| Hue family | Greens |
| Lightness | medium-light (65%) |
| Chroma | muted (0.063) |
| Temperature | in between |
| Nearest name | Grey Teal (#5E9B8A) |
| Black text | 6.60:1 |
| White text | 3.17:1 |
Values
| HEX | #669B88 |
| RGB | rgb(102, 155, 136) |
| HSL | hsl(158, 21%, 50%) |
| OKLCH | oklch(64.7% 0.063 169.8) |
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 #669B88 | 3.17:1 | AA large text | Lc -64.3 | Content text, not long reading |
| Black text on #669B88 | 6.60:1 | AA | Lc 45.2 | Large or bold text, headings |
| #669B88 text on white | 3.17:1 | AA large text | Lc 58.9 | Large or bold text, headings |
| #669B88 text on black | 6.60:1 | AA | Lc -42.9 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CFDDD7
oklch(88.5% 0.017 168.4)
-
Step 300
300
#AEC7BD
oklch(80.8% 0.03 169.5)
-
Step 400
400
#82AB9C
oklch(70.7% 0.05 170.4)
-
Step 500
500 (this color)
#669B88
oklch(64.7% 0.063 169.8)
-
Step 600
600
#47816D
oklch(55.7% 0.069 169.4)
-
Step 700
700
#386D5B
oklch(49.2% 0.064 169.4)
-
Step 800
800
#2F594A
oklch(42.8% 0.054 168.6)
-
Step 900
900
#2A493E
oklch(37.7% 0.042 169.4)
-
Step 950
950
#192B24
oklch(27.1% 0.027 167.9)
#669B88 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) | #989487 | 0.065 |
| Deuteranopia (no green cones) | #8F8E89 | 0.062 |
| Tritanopia (no blue cones) | #589C95 | 0.021 |
| Achromatopsia (no color) | #909090 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669B88
#669B88
oklch(64.7% 0.063 169.8)
- #AC7F94
#AC7F94
oklch(64.7% 0.062 349.4)
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 #669B88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Teal #5E9B8A ΔE 0.008
- Dull Teal #5F9E8F ΔE 0.012
- Cadet Blue #5F9EA0 ΔE 0.034
- Green Grey #77926F ΔE 0.038
- Greeny Grey #7EA07A ΔE 0.039
- Sea #3C9992 ΔE 0.040
- Dusty Teal #4C9085 ΔE 0.045
- Persian Green #2A9D8F ΔE 0.045
Use #669B88 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.