#66BEC2
Closest named color: Medium Turquoise (#48D1CC). oklch(74.8% 0.085 199.4), rgb(102, 190, 194).
Aa
Black text reads best on this color (9.70:1).
About this color
#66BEC2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 75%, its chroma 0.085 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Turquoise (#48D1CC), ΔE 0.051 away. Black text reads best on it, at 9.70:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Medium Turquoise (#48D1CC) |
| Black text | 9.70:1 |
| White text | 2.16:1 |
Values
| HEX | #66BEC2 |
| RGB | rgb(102, 190, 194) |
| HSL | hsl(183, 43%, 58%) |
| OKLCH | oklch(74.8% 0.085 199.4) |
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 #66BEC2 | 2.16:1 | Fails | Lc -47.0 | Large or bold text, headings |
| Black text on #66BEC2 | 9.70:1 | AAA | Lc 61.6 | Content text, not long reading |
| #66BEC2 text on white | 2.16:1 | Fails | Lc 42.3 | Non-text elements, placeholder text |
| #66BEC2 text on black | 9.70:1 | AAA | Lc -59.9 | 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
#F0F7F7
oklch(97.1% 0.007 197)
-
Step 100
100
#DFEDEE
oklch(93.6% 0.015 202)
-
Step 200
200
#C4DFE0
oklch(88.4% 0.029 199.4)
-
Step 300
300
#99CCCE
oklch(81% 0.053 199.2)
-
Step 400
400 (this color)
#66BEC2
oklch(74.8% 0.085 199.4)
-
Step 500
500
#009DA2
oklch(63.2% 0.107 198.8)
-
Step 600
600
#008488
oklch(55.7% 0.095 198.5)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800
#005B5E
oklch(42.8% 0.073 198.7)
-
Step 900
900
#004C4F
oklch(37.8% 0.064 199.4)
-
Step 950
950
#012D2F
oklch(27% 0.045 199.5)
#66BEC2 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) | #B3B7C2 | 0.087 |
| Deuteranopia (no green cones) | #A4ABC3 | 0.082 |
| Tritanopia (no blue cones) | #31C3BF | 0.035 |
| Achromatopsia (no color) | #B0B0B0 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66BEC2
#66BEC2
oklch(74.8% 0.085 199.4)
- #DE9898
#DE9898
oklch(74.8% 0.085 19.2)
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 #66BEC2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Turquoise #48D1CC ΔE 0.051
- Dark Turquoise #00CED1 ΔE 0.052
- Topaz #13BBAF ΔE 0.056
- Pale Teal #82CBB2 ΔE 0.057
- Medium Aquamarine #66CDAA ΔE 0.063
- Vivid Sky Blue #4CC9F0 ΔE 0.064
- Turquoise Blue #06B1C4 ΔE 0.064
- Light Cornflower Blue #98C1D9 ΔE 0.065
Use #66BEC2 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.