#669FDF#669FDF

#669FDF is a light, moderate cyan. Relative luminance 0.329; OKLCH L 69.0% C 0.112 H 252.3°. Best body text is #000000 at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#669FDF
RGB	rgb(102, 159, 223)
HSL	hsl(212, 65%, 64%)
HSV	hsv(212, 54%, 87%)
CMYK	cmyk(54.3%, 28.7%, 0%, 12.5%)
CIE-LAB	lab(64.12, -0.45, -38.11)
CIE-LCH	lch(64.12, 38.12, 269.32°)
OKLab	oklab(68.98% -0.0341 -0.1071)
OKLCH	oklch(68.98% 0.112 252.3)
XYZ	xyz(31.1922, 32.9462, 74.5132)
Luminance	0.3295 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669FDF #DFA666

analogous

#66DBDF #669FDF #6966DF

triadic

#669FDF #DF669F #9FDF66

tetradic

#669FDF #DF66DB #DFA666 #66DF69

square

#669FDF #DF66DB #DFA666 #66DF69

split-complementary

#669FDF #DF6966 #DBDF66

monochromatic

#2361A8 #337FD4 #669FDF #99BFEA #CBDFF4

Accessibility & contrast

On white

2.77

#669FDF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.59

#669FDF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669FDF

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669FDF	#FFFFFF	#000000	##000000
##669FDF	1.00	2.77	7.59	7.59
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.59	21.00	1.00	1.00
##000000	7.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#85A2E2

Deuteranopia (green-blind)

#7596DE

Tritanopia (blue-blind)

#16AEB5

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #669fdf;
/* rgb */ color: rgb(102, 159, 223);
/* oklch */ color: oklch(69.0% 0.112 252.3);

Tailwind

colors: {
  custom: {
    50: '#99bbe9',
    500: '#669fdf',
    950: '#000000',
  },
}

SCSS

$custom: #669fdf;
$custom-light: #99bbe9;
$custom-dark: #000000;

JSON

{
  "hex": "#669fdf",
  "rgb": {
    "r": 102,
    "g": 159,
    "b": 223
  },
  "hsl": {
    "h": 211.736,
    "s": 65.405,
    "l": 63.725
  },
  "oklch": {
    "l": 0.68983,
    "c": 0.11241,
    "h": 252.3
  },
  "luminance": 0.32949
}

Semantic roles & 50–950 ramp

primary

#669FDF

secondary

#E6D2BB

accent

#7818CD

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0F1116

muted

#7E8084

Preview Lab

Preview with #669FDF

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

Preview Lab → · Contrast checker → · Palette generator →