#669A8A
Closest named color: Grey Teal (#5E9B8A). oklch(64.5% 0.061 173), rgb(102, 154, 138).
Aa
Black text reads best on this color (6.55:1).
About this color
#669A8A is a medium-light, muted teal or cyan. In OKLCH its lightness is 64%, its chroma 0.061 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Teal (#5E9B8A), ΔE 0.009 away. Black text reads best on it, at 6.55:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Grey Teal (#5E9B8A) |
| Black text | 6.55:1 |
| White text | 3.20:1 |
Values
| HEX | #669A8A |
| RGB | rgb(102, 154, 138) |
| HSL | hsl(162, 20%, 50%) |
| OKLCH | oklch(64.5% 0.061 173) |
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 #669A8A | 3.20:1 | AA large text | Lc -64.6 | Content text, not long reading |
| Black text on #669A8A | 6.55:1 | AA | Lc 44.9 | Non-text elements, placeholder text |
| #669A8A text on white | 3.20:1 | AA large text | Lc 59.2 | Large or bold text, headings |
| #669A8A text on black | 6.55:1 | AA | Lc -42.5 | 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
#CFDDD8
oklch(88.6% 0.016 172.6)
-
Step 300
300
#AEC7BF
oklch(80.9% 0.029 174.3)
-
Step 400
400
#83AB9E
oklch(70.8% 0.047 173)
-
Step 500
500 (this color)
#669A8A
oklch(64.5% 0.061 173)
-
Step 600
600
#478070
oklch(55.6% 0.066 173.7)
-
Step 700
700
#386C5D
oklch(49% 0.061 172.8)
-
Step 800
800
#2F584C
oklch(42.6% 0.051 172.9)
-
Step 900
900
#2A4940
oklch(37.8% 0.04 173.6)
-
Step 950
950
#192B25
oklch(27.1% 0.026 171.3)
#669A8A 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) | #979489 | 0.063 |
| Deuteranopia (no green cones) | #8E8D8B | 0.061 |
| Tritanopia (no blue cones) | #589B95 | 0.019 |
| Achromatopsia (no color) | #909090 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669A8A
#669A8A
oklch(64.5% 0.061 173)
- #AC7F91
#AC7F91
oklch(64.6% 0.061 353.1)
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 #669A8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Teal #5E9B8A ΔE 0.009
- Dull Teal #5F9E8F ΔE 0.012
- Cadet Blue #5F9EA0 ΔE 0.031
- Sea #3C9992 ΔE 0.038
- Green Grey #77926F ΔE 0.039
- Dusty Teal #4C9085 ΔE 0.042
- Greeny Grey #7EA07A ΔE 0.043
- Persian Green #2A9D8F ΔE 0.045
Use #669A8A 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.