#669DC9#669DC9

#669DC9 is a light, moderate cyan. Relative luminance 0.312; OKLCH L 67.5% C 0.088 H 243.7°. Best body text is #000000 at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#669DC9
RGB	rgb(102, 157, 201)
HSL	hsl(207, 48%, 59%)
HSV	hsv(207, 49%, 79%)
CMYK	cmyk(49.3%, 21.9%, 0%, 21.2%)
CIE-LAB	lab(62.64, -5.96, -28.19)
CIE-LCH	lch(62.64, 28.81, 258.06°)
OKLab	oklab(67.52% -0.0388 -0.0785)
OKLCH	oklch(67.52% 0.088 243.7)
XYZ	xyz(28.0754, 31.1537, 59.7808)
Luminance	0.3116 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669DC9 #C99266

analogous

#66C9C4 #669DC9 #666CC9

triadic

#669DC9 #C9669D #9DC966

tetradic

#669DC9 #C466C9 #C99266 #6CC966

square

#669DC9 #C466C9 #C99266 #6CC966

split-complementary

#669DC9 #C9666C #C9C466

monochromatic

#2F5F85 #3F7FB3 #669DC9 #93BAD9 #C0D7E9

Accessibility & contrast

On white

2.90

#669DC9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.23

#669DC9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669DC9

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669DC9	#FFFFFF	#000000	##000000
##669DC9	1.00	2.90	7.23	7.23
#FFFFFF	2.90	1.00	21.00	21.00
#000000	7.23	21.00	1.00	1.00
##000000	7.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A9DCB

Deuteranopia (green-blind)

#7D93C8

Tritanopia (blue-blind)

#36A8AC

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #669dc9;
/* rgb */ color: rgb(102, 157, 201);
/* oklch */ color: oklch(67.5% 0.088 243.7);

Tailwind

colors: {
  custom: {
    50: '#97b9d9',
    500: '#669dc9',
    950: '#000000',
  },
}

SCSS

$custom: #669dc9;
$custom-light: #97b9d9;
$custom-dark: #000000;

JSON

{
  "hex": "#669dc9",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 201
  },
  "hsl": {
    "h": 206.667,
    "s": 47.826,
    "l": 59.412
  },
  "oklch": {
    "l": 0.67516,
    "c": 0.08759,
    "h": 243.7
  },
  "luminance": 0.31156
}

Semantic roles & 50–950 ramp

primary

#669DC9

secondary

#D9C3B2

accent

#8C50D7

background

#F9FBFD

surface

#F2F6FA

border

#CCD0D3

text

#0E1114

muted

#7E8083

Preview Lab

Preview with #669DC9

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

Preview Lab → · Contrast checker → · Palette generator →