#669DDD#669DDD

#669DDD is a light, moderate cyan. Relative luminance 0.322; OKLCH L 68.4% C 0.112 H 253.1°. Best body text is #000000 at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#669DDD
RGB	rgb(102, 157, 221)
HSL	hsl(212, 64%, 63%)
HSV	hsv(212, 54%, 87%)
CMYK	cmyk(53.8%, 29%, 0%, 13.3%)
CIE-LAB	lab(63.47, 0.07, -38.01)
CIE-LCH	lch(63.47, 38.01, 270.11°)
OKLab	oklab(68.45% -0.0325 -0.1068)
OKLCH	oklch(68.45% 0.112 253.1)
XYZ	xyz(30.5830, 32.1567, 72.9878)
Luminance	0.3216 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669DDD #DDA666

analogous

#66D8DD #669DDD #6A66DD

triadic

#669DDD #DD669D #9DDD66

tetradic

#669DDD #DD66D8 #DDA666 #66DD6A

square

#669DDD #DD66D8 #DDA666 #66DD6A

split-complementary

#669DDD #DD6A66 #D8DD66

monochromatic

#245FA4 #347DD2 #669DDD #98BDE8 #CADDF3

Accessibility & contrast

On white

2.83

#669DDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.43

#669DDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669DDD

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669DDD	#FFFFFF	#000000	##000000
##669DDD	1.00	2.83	7.43	7.43
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.43	21.00	1.00	1.00
##000000	7.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#83A0E0

Deuteranopia (green-blind)

#7494DC

Tritanopia (blue-blind)

#1CACB3

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #669ddd;
/* rgb */ color: rgb(102, 157, 221);
/* oklch */ color: oklch(68.4% 0.112 253.1);

Tailwind

colors: {
  custom: {
    50: '#99b9e8',
    500: '#669ddd',
    950: '#000000',
  },
}

SCSS

$custom: #669ddd;
$custom-light: #99b9e8;
$custom-dark: #000000;

JSON

{
  "hex": "#669ddd",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 221
  },
  "hsl": {
    "h": 212.269,
    "s": 63.636,
    "l": 63.333
  },
  "oklch": {
    "l": 0.68448,
    "c": 0.11165,
    "h": 253.1
  },
  "luminance": 0.32159
}

Semantic roles & 50–950 ramp

primary

#669DDD

secondary

#E5D1BA

accent

#791ACB

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #669DDD

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

Preview Lab → · Contrast checker → · Palette generator →