#669F8A
Closest named color: Dull Teal (#5F9E8F). oklch(65.7% 0.068 169), rgb(102, 159, 138).
Aa
Black text reads best on this color (6.89:1).
About this color
#669F8A is a medium-light, muted green. In OKLCH its lightness is 66%, its chroma 0.068 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dull Teal (#5F9E8F), ΔE 0.011 away. Black text reads best on it, at 6.89:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | muted (0.068) |
| Temperature | in between |
| Nearest name | Dull Teal (#5F9E8F) |
| Black text | 6.89:1 |
| White text | 3.04:1 |
Values
| HEX | #669F8A |
| RGB | rgb(102, 159, 138) |
| HSL | hsl(158, 23%, 51%) |
| OKLCH | oklch(65.7% 0.068 169) |
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 #669F8A | 3.04:1 | AA large text | Lc -62.6 | Content text, not long reading |
| Black text on #669F8A | 6.89:1 | AA | Lc 46.8 | Large or bold text, headings |
| #669F8A text on white | 3.04:1 | AA large text | Lc 57.2 | Large or bold text, headings |
| #669F8A text on black | 6.89:1 | AA | Lc -44.5 | 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
#CEDDD7
oklch(88.5% 0.018 170)
-
Step 300
300
#ADC8BD
oklch(80.9% 0.033 169)
-
Step 400
400
#80AC9B
oklch(70.8% 0.054 169)
-
Step 500
500 (this color)
#669F8A
oklch(65.7% 0.068 169)
-
Step 600
600
#43816C
oklch(55.5% 0.073 169.4)
-
Step 700
700
#346D5A
oklch(49% 0.068 169.3)
-
Step 800
800
#2C594A
oklch(42.7% 0.056 169.7)
-
Step 900
900
#28493D
oklch(37.6% 0.044 168.6)
-
Step 950
950
#182B24
oklch(27% 0.028 168.9)
#669F8A 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) | #9C9889 | 0.069 |
| Deuteranopia (no green cones) | #92918B | 0.066 |
| Tritanopia (no blue cones) | #57A099 | 0.024 |
| Achromatopsia (no color) | #949494 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669F8A
#669F8A
oklch(65.7% 0.068 169)
- #B18098
#B18098
oklch(65.6% 0.068 348.3)
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 #669F8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Teal #5F9E8F ΔE 0.011
- Grey Teal #5E9B8A ΔE 0.015
- Cadet Blue #5F9EA0 ΔE 0.034
- Greeny Grey #7EA07A ΔE 0.034
- Grey Green #86A17D ΔE 0.041
- Green Grey #77926F ΔE 0.044
- Sea #3C9992 ΔE 0.045
- Tea #65AB7C ΔE 0.046
Use #669F8A 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.