#669BC5#669BC5

#669BC5 is a light, moderate cyan. Relative luminance 0.303; OKLCH L 66.9% C 0.084 H 243.4°. Best body text is #000000 at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#669BC5
RGB	rgb(102, 155, 197)
HSL	hsl(207, 45%, 59%)
HSV	hsv(207, 48%, 77%)
CMYK	cmyk(48.2%, 21.3%, 0%, 22.7%)
CIE-LAB	lab(61.91, -6.02, -27.07)
CIE-LCH	lch(61.91, 27.73, 257.47°)
OKLab	oklab(66.89% -0.0377 -0.0754)
OKLCH	oklch(66.89% 0.084 243.4)
XYZ	xyz(27.2754, 30.2967, 57.2231)
Luminance	0.3030 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669BC5 #C59066

analogous

#66C5BF #669BC5 #666BC5

triadic

#669BC5 #C5669B #9BC566

tetradic

#669BC5 #BF66C5 #C59066 #6BC566

square

#669BC5 #BF66C5 #C59066 #6BC566

split-complementary

#669BC5 #C5666B #C5BF66

monochromatic

#315D80 #417DAC #669BC5 #92B8D6 #BFD5E7

Accessibility & contrast

On white

2.97

#669BC5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.06

#669BC5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669BC5

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669BC5	#FFFFFF	#000000	##000000
##669BC5	1.00	2.97	7.06	7.06
#FFFFFF	2.97	1.00	21.00	21.00
#000000	7.06	21.00	1.00	1.00
##000000	7.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#899BC7

Deuteranopia (green-blind)

#7D91C4

Tritanopia (blue-blind)

#3AA5A9

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #669bc5;
/* rgb */ color: rgb(102, 155, 197);
/* oklch */ color: oklch(66.9% 0.084 243.4);

Tailwind

colors: {
  custom: {
    50: '#97b8d6',
    500: '#669bc5',
    950: '#000000',
  },
}

SCSS

$custom: #669bc5;
$custom-light: #97b8d6;
$custom-dark: #000000;

JSON

{
  "hex": "#669bc5",
  "rgb": {
    "r": 102,
    "g": 155,
    "b": 197
  },
  "hsl": {
    "h": 206.526,
    "s": 45.024,
    "l": 58.627
  },
  "oklch": {
    "l": 0.66889,
    "c": 0.08428,
    "h": 243.4
  },
  "luminance": 0.30299
}

Semantic roles & 50–950 ramp

primary

#669BC5

secondary

#D6C1B1

accent

#8C53D5

background

#F9FBFD

surface

#F2F6FA

border

#CCD0D3

text

#0E1114

muted

#7E8083

Preview Lab

Preview with #669BC5

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

Preview Lab → · Contrast checker → · Palette generator →