#669EB3#669EB3

#669EB3 is a light, moderate cyan. Relative luminance 0.305; OKLCH L 66.8% C 0.066 H 223.7°. Best body text is #000000 at 7.11:1 contrast (WCAG AA passes).

Color values

HEX	#669EB3
RGB	rgb(102, 158, 179)
HSL	hsl(196, 34%, 55%)
HSV	hsv(196, 43%, 70%)
CMYK	cmyk(43%, 11.7%, 0%, 29.8%)
CIE-LAB	lab(62.11, -12.77, -16.66)
CIE-LCH	lch(62.11, 20.99, 232.52°)
OKLab	oklab(66.83% -0.048 -0.0459)
OKLCH	oklch(66.83% 0.066 223.7)
XYZ	xyz(25.8401, 30.5314, 47.1706)
Luminance	0.3053 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669EB3 #B37B66

analogous

#66B3A2 #669EB3 #6677B3

triadic

#669EB3 #B3669E #9EB366

tetradic

#669EB3 #A266B3 #B37B66 #77B366

square

#669EB3 #A266B3 #B37B66 #77B366

split-complementary

#669EB3 #B36677 #B3A266

monochromatic

#355B6A #497F93 #669EB3 #8FB8C7 #B8D2DC

Accessibility & contrast

On white

2.95

#669EB3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.11

#669EB3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669EB3

7.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669EB3	#FFFFFF	#000000	##000000
##669EB3	1.00	2.95	7.11	7.11
#FFFFFF	2.95	1.00	21.00	21.00
#000000	7.11	21.00	1.00	1.00
##000000	7.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#929BB4

Deuteranopia (green-blind)

#8692B3

Tritanopia (blue-blind)

#45A5A5

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #669eb3;
/* rgb */ color: rgb(102, 158, 179);
/* oklch */ color: oklch(66.8% 0.066 223.7);

Tailwind

colors: {
  custom: {
    50: '#95bac9',
    500: '#669eb3',
    950: '#000000',
  },
}

SCSS

$custom: #669eb3;
$custom-light: #95bac9;
$custom-dark: #000000;

JSON

{
  "hex": "#669eb3",
  "rgb": {
    "r": 102,
    "g": 158,
    "b": 179
  },
  "hsl": {
    "h": 196.364,
    "s": 33.624,
    "l": 55.098
  },
  "oklch": {
    "l": 0.66829,
    "c": 0.06643,
    "h": 223.7
  },
  "luminance": 0.30533
}

Semantic roles & 50–950 ramp

primary

#669EB3

secondary

#CBB3AA

accent

#7B5ECA

background

#F9FBFC

surface

#F2F6F8

border

#CCD0D1

text

#0E1113

muted

#7E8082

Preview Lab

Preview with #669EB3

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

Preview Lab → · Contrast checker → · Palette generator →