#66A89E
Closest named color: Cadet Blue (#5F9EA0). oklch(68.4% 0.069 183.6), rgb(102, 168, 158).
Aa
Black text reads best on this color (7.65:1).
About this color
#66A89E is a medium-light, muted teal or cyan. In OKLCH its lightness is 68%, its chroma 0.069 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.032 away. Black text reads best on it, at 7.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.65:1 |
| White text | 2.74:1 |
Values
| HEX | #66A89E |
| RGB | rgb(102, 168, 158) |
| HSL | hsl(171, 27%, 53%) |
| OKLCH | oklch(68.4% 0.069 183.6) |
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 #66A89E | 2.74:1 | Fails | Lc -58.1 | Large or bold text, headings |
| Black text on #66A89E | 7.65:1 | AAA | Lc 51.1 | Large or bold text, headings |
| #66A89E text on white | 2.74:1 | Fails | Lc 52.9 | Large or bold text, headings |
| #66A89E text on black | 7.65:1 | AAA | Lc -48.9 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEB
oklch(93.7% 0.013 185.1)
-
Step 200
200
#C9DFDB
oklch(88.6% 0.024 183.7)
-
Step 300
300
#A2CAC3
oklch(80.8% 0.044 183.4)
-
Step 400
400 (this color)
#66A89E
oklch(68.4% 0.069 183.6)
-
Step 500
500
#3F9B8F
oklch(63.1% 0.089 183.6)
-
Step 600
600
#0C8579
oklch(55.5% 0.096 183.7)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#055C53
oklch(42.7% 0.074 183.3)
-
Step 900
900
#144B45
oklch(37.6% 0.057 184.7)
-
Step 950
950
#0E2C28
oklch(26.9% 0.036 183.6)
#66A89E 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) | #A2A19E | 0.074 |
| Deuteranopia (no green cones) | #97999F | 0.070 |
| Tritanopia (no blue cones) | #4EAAA5 | 0.021 |
| Achromatopsia (no color) | #9C9C9C | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66A89E
#66A89E
oklch(68.4% 0.069 183.6)
- #BF8895
#BF8895
oklch(68.5% 0.069 3.5)
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 #66A89E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.032
- Dull Teal #5F9E8F ΔE 0.033
- Grey Teal #5E9B8A ΔE 0.043
- Light Sea Green #20B2AA ΔE 0.046
- Greeny Blue #42B395 ΔE 0.047
- Greyblue #77A1B5 ΔE 0.050
- Greeny Grey #7EA07A ΔE 0.050
- Grey Green #86A17D ΔE 0.051
Use #66A89E 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.