#669DB4#669DB4

#669DB4 is a light, moderate cyan. Relative luminance 0.302; OKLCH L 66.6% C 0.067 H 226.3°. Best body text is #000000 at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#669DB4
RGB	rgb(102, 157, 180)
HSL	hsl(198, 34%, 55%)
HSV	hsv(198, 43%, 71%)
CMYK	cmyk(43.3%, 12.8%, 0%, 29.4%)
CIE-LAB	lab(61.85, -11.96, -17.61)
CIE-LCH	lch(61.85, 21.29, 235.83°)
OKLab	oklab(66.64% -0.0464 -0.0486)
OKLCH	oklch(66.64% 0.067 226.3)
XYZ	xyz(25.7718, 30.2322, 47.6485)
Luminance	0.3023 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669DB4 #B47D66

analogous

#66B4A4 #669DB4 #6676B4

triadic

#669DB4 #B4669D #9DB466

tetradic

#669DB4 #A466B4 #B47D66 #76B466

square

#669DB4 #A466B4 #B47D66 #76B466

split-complementary

#669DB4 #B46676 #B4A466

monochromatic

#345B6B #497E94 #669DB4 #8FB7C8 #B8D2DC

Accessibility & contrast

On white

2.98

#669DB4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.05

#669DB4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669DB4

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669DB4	#FFFFFF	#000000	##000000
##669DB4	1.00	2.98	7.05	7.05
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.05	21.00	1.00	1.00
##000000	7.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#919BB5

Deuteranopia (green-blind)

#8592B4

Tritanopia (blue-blind)

#45A4A4

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #669db4;
/* rgb */ color: rgb(102, 157, 180);
/* oklch */ color: oklch(66.6% 0.067 226.3);

Tailwind

colors: {
  custom: {
    50: '#95baca',
    500: '#669db4',
    950: '#000000',
  },
}

SCSS

$custom: #669db4;
$custom-light: #95baca;
$custom-dark: #000000;

JSON

{
  "hex": "#669db4",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 180
  },
  "hsl": {
    "h": 197.692,
    "s": 34.211,
    "l": 55.294
  },
  "oklch": {
    "l": 0.66637,
    "c": 0.06716,
    "h": 226.3
  },
  "luminance": 0.30234
}

Semantic roles & 50–950 ramp

primary

#669DB4

secondary

#CBB4AB

accent

#7E5ECA

background

#F9FBFC

surface

#F2F6F8

border

#CCD0D1

text

#0E1113

muted

#7E8082

Preview Lab

Preview with #669DB4

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

Preview Lab → · Contrast checker → · Palette generator →