#669BC3#669BC3

#669BC3 is a light, moderate cyan. Relative luminance 0.302; OKLCH L 66.8% C 0.082 H 242.1°. Best body text is #000000 at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#669BC3
RGB	rgb(102, 155, 195)
HSL	hsl(206, 44%, 58%)
HSV	hsv(206, 48%, 76%)
CMYK	cmyk(47.7%, 20.5%, 0%, 23.5%)
CIE-LAB	lab(61.83, -6.60, -26.07)
CIE-LCH	lch(61.83, 26.89, 255.79°)
OKLab	oklab(66.8% -0.0384 -0.0725)
OKLCH	oklch(66.8% 0.082 242.1)
XYZ	xyz(27.0477, 30.2056, 56.0242)
Luminance	0.3021 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669BC3 #C38E66

analogous

#66C3BC #669BC3 #666CC3

triadic

#669BC3 #C3669B #9BC366

tetradic

#669BC3 #BC66C3 #C38E66 #6CC366

square

#669BC3 #BC66C3 #C38E66 #6CC366

split-complementary

#669BC3 #C3666C #C3BC66

monochromatic

#315D7D #427DA9 #669BC3 #92B8D4 #BED4E5

Accessibility & contrast

On white

2.98

#669BC3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.04

#669BC3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669BC3

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669BC3	#FFFFFF	#000000	##000000
##669BC3	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)

#8A9BC5

Deuteranopia (green-blind)

#7D91C2

Tritanopia (blue-blind)

#3BA5A8

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #669bc3;
/* rgb */ color: rgb(102, 155, 195);
/* oklch */ color: oklch(66.8% 0.082 242.1);

Tailwind

colors: {
  custom: {
    50: '#96b8d5',
    500: '#669bc3',
    950: '#000000',
  },
}

SCSS

$custom: #669bc3;
$custom-light: #96b8d5;
$custom-dark: #000000;

JSON

{
  "hex": "#669bc3",
  "rgb": {
    "r": 102,
    "g": 155,
    "b": 195
  },
  "hsl": {
    "h": 205.806,
    "s": 43.662,
    "l": 58.235
  },
  "oklch": {
    "l": 0.66802,
    "c": 0.08206,
    "h": 242.1
  },
  "luminance": 0.30208
}

Semantic roles & 50–950 ramp

primary

#669BC3

secondary

#D5C0B0

accent

#8B54D3

background

#F9FBFD

surface

#F2F6FA

border

#CCD0D3

text

#0E1114

muted

#7E8083

Preview Lab

Preview with #669BC3

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

Preview Lab → · Contrast checker → · Palette generator →