#669DC4#669DC4

#669DC4 is a light, moderate cyan. Relative luminance 0.309; OKLCH L 67.3% C 0.082 H 240.4°. Best body text is #000000 at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#669DC4
RGB	rgb(102, 157, 196)
HSL	hsl(205, 44%, 58%)
HSV	hsv(205, 48%, 77%)
CMYK	cmyk(48%, 19.9%, 0%, 23.1%)
CIE-LAB	lab(62.44, -7.42, -25.69)
CIE-LCH	lch(62.44, 26.74, 253.88°)
OKLab	oklab(67.3% -0.0405 -0.0714)
OKLCH	oklch(67.3% 0.082 240.4)
XYZ	xyz(27.4968, 30.9222, 56.7335)
Luminance	0.3092 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669DC4 #C48D66

analogous

#66C4BC #669DC4 #666EC4

triadic

#669DC4 #C4669D #9DC466

tetradic

#669DC4 #BC66C4 #C48D66 #6EC466

square

#669DC4 #BC66C4 #C48D66 #6EC466

split-complementary

#669DC4 #C4666E #C4BC66

monochromatic

#315E7F #427FAB #669DC4 #92B9D5 #BED6E6

Accessibility & contrast

On white

2.92

#669DC4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.18

#669DC4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669DC4

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669DC4	#FFFFFF	#000000	##000000
##669DC4	1.00	2.92	7.18	7.18
#FFFFFF	2.92	1.00	21.00	21.00
#000000	7.18	21.00	1.00	1.00
##000000	7.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C9DC6

Deuteranopia (green-blind)

#7F93C3

Tritanopia (blue-blind)

#3AA7AA

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #669dc4;
/* rgb */ color: rgb(102, 157, 196);
/* oklch */ color: oklch(67.3% 0.082 240.4);

Tailwind

colors: {
  custom: {
    50: '#97b9d6',
    500: '#669dc4',
    950: '#000000',
  },
}

SCSS

$custom: #669dc4;
$custom-light: #97b9d6;
$custom-dark: #000000;

JSON

{
  "hex": "#669dc4",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 196
  },
  "hsl": {
    "h": 204.894,
    "s": 44.34,
    "l": 58.431
  },
  "oklch": {
    "l": 0.67297,
    "c": 0.0821,
    "h": 240.4
  },
  "luminance": 0.30924
}

Semantic roles & 50–950 ramp

primary

#669DC4

secondary

#D6C0B0

accent

#8954D4

background

#F9FBFD

surface

#F2F6FA

border

#CCD0D3

text

#0E1114

muted

#7E8083

Preview Lab

Preview with #669DC4

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

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