#669DAA#669DAA

#669DAA is a light, moderate cyan. Relative luminance 0.298; OKLCH L 66.3% C 0.061 H 214.3°. Best body text is #000000 at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#669DAA
RGB	rgb(102, 157, 170)
HSL	hsl(191, 29%, 53%)
HSV	hsv(191, 40%, 67%)
CMYK	cmyk(40%, 7.6%, 0%, 33.3%)
CIE-LAB	lab(61.52, -14.66, -12.49)
CIE-LCH	lch(61.52, 19.26, 220.43°)
OKLab	oklab(66.26% -0.0503 -0.0343)
OKLCH	oklch(66.26% 0.061 214.3)
XYZ	xyz(24.7896, 29.8394, 42.4757)
Luminance	0.2984 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669DAA #AA7366

analogous

#66AA95 #669DAA #667BAA

triadic

#669DAA #AA669D #9DAA66

tetradic

#669DAA #9566AA #AA7366 #7BAA66

square

#669DAA #9566AA #AA7366 #7BAA66

split-complementary

#669DAA #AA667B #AA9566

monochromatic

#355860 #4B7C88 #669DAA #8DB6C0 #B5CFD6

Accessibility & contrast

On white

3.01

#669DAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.97

#669DAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #669DAA

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669DAA	#FFFFFF	#000000	##000000
##669DAA	1.00	3.01	6.97	6.97
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.97	21.00	1.00	1.00
##000000	6.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9399AB

Deuteranopia (green-blind)

#8891AA

Tritanopia (blue-blind)

#4AA2A1

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #669daa;
/* rgb */ color: rgb(102, 157, 170);
/* oklch */ color: oklch(66.3% 0.061 214.3);

Tailwind

colors: {
  custom: {
    50: '#95bac3',
    500: '#669daa',
    950: '#000000',
  },
}

SCSS

$custom: #669daa;
$custom-light: #95bac3;
$custom-dark: #000000;

JSON

{
  "hex": "#669daa",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 170
  },
  "hsl": {
    "h": 191.471,
    "s": 28.571,
    "l": 53.333
  },
  "oklch": {
    "l": 0.66255,
    "c": 0.06091,
    "h": 214.3
  },
  "luminance": 0.29841
}

Semantic roles & 50–950 ramp

primary

#669DAA

secondary

#C5ADA7

accent

#7663C5

background

#F9FBFB

surface

#F2F6F7

border

#CCD0D0

text

#0D1112

muted

#7E8081

Preview Lab

Preview with #669DAA

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →