#669DB3#669DB3

#669DB3 is a light, moderate cyan. Relative luminance 0.302; OKLCH L 66.6% C 0.066 H 225.2°. Best body text is #000000 at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#669DB3
RGB	rgb(102, 157, 179)
HSL	hsl(197, 34%, 55%)
HSV	hsv(197, 43%, 70%)
CMYK	cmyk(43%, 12.3%, 0%, 29.8%)
CIE-LAB	lab(61.82, -12.23, -17.10)
CIE-LCH	lch(61.82, 21.02, 234.43°)
OKLab	oklab(66.6% -0.0468 -0.0471)
OKLCH	oklch(66.6% 0.066 225.2)
XYZ	xyz(25.6703, 30.1916, 47.1140)
Luminance	0.3019 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669DB3 #B37C66

analogous

#66B3A2 #669DB3 #6676B3

triadic

#669DB3 #B3669D #9DB366

tetradic

#669DB3 #A266B3 #B37C66 #76B366

square

#669DB3 #A266B3 #B37C66 #76B366

split-complementary

#669DB3 #B36676 #B3A266

monochromatic

#355B6A #497E93 #669DB3 #8FB7C7 #B8D1DC

Accessibility & contrast

On white

2.98

#669DB3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.04

#669DB3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669DB3

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669DB3	#FFFFFF	#000000	##000000
##669DB3	1.00	2.98	7.04	7.04
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.04	21.00	1.00	1.00
##000000	7.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#919AB4

Deuteranopia (green-blind)

#8592B3

Tritanopia (blue-blind)

#45A4A4

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #669db3;
/* rgb */ color: rgb(102, 157, 179);
/* oklch */ color: oklch(66.6% 0.066 225.2);

Tailwind

colors: {
  custom: {
    50: '#95bac9',
    500: '#669db3',
    950: '#000000',
  },
}

SCSS

$custom: #669db3;
$custom-light: #95bac9;
$custom-dark: #000000;

JSON

{
  "hex": "#669db3",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 179
  },
  "hsl": {
    "h": 197.143,
    "s": 33.624,
    "l": 55.098
  },
  "oklch": {
    "l": 0.66597,
    "c": 0.06641,
    "h": 225.2
  },
  "luminance": 0.30193
}

Semantic roles & 50–950 ramp

primary

#669DB3

secondary

#CBB3AA

accent

#7D5ECA

background

#F9FBFC

surface

#F2F6F8

border

#CCD0D1

text

#0E1113

muted

#7E8082

Preview Lab

Preview with #669DB3

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

Preview Lab → · Contrast checker → · Palette generator →