#669FDB#669FDB

#669FDB is a light, moderate cyan. Relative luminance 0.327; OKLCH L 68.8% C 0.107 H 250.8°. Best body text is #000000 at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#669FDB
RGB	rgb(102, 159, 219)
HSL	hsl(211, 62%, 63%)
HSV	hsv(211, 53%, 86%)
CMYK	cmyk(53.4%, 27.4%, 0%, 14.1%)
CIE-LAB	lab(63.94, -1.68, -36.17)
CIE-LCH	lch(63.94, 36.21, 267.34°)
OKLab	oklab(68.79% -0.0353 -0.1015)
OKLCH	oklch(68.79% 0.107 250.8)
XYZ	xyz(30.6593, 32.7331, 71.7066)
Luminance	0.3274 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669FDB #DBA266

analogous

#66DADB #669FDB #6766DB

triadic

#669FDB #DB669F #9FDB66

tetradic

#669FDB #DB66DA #DBA266 #66DB67

square

#669FDB #DB66DA #DBA266 #66DB67

split-complementary

#669FDB #DB6766 #DADB66

monochromatic

#2662A1 #3480CF #669FDB #98BEE7 #C9DDF2

Accessibility & contrast

On white

2.78

#669FDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.55

#669FDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669FDB

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669FDB	#FFFFFF	#000000	##000000
##669FDB	1.00	2.78	7.55	7.55
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.55	21.00	1.00	1.00
##000000	7.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86A1DE

Deuteranopia (green-blind)

#7796DA

Tritanopia (blue-blind)

#1FADB4

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #669fdb;
/* rgb */ color: rgb(102, 159, 219);
/* oklch */ color: oklch(68.8% 0.107 250.8);

Tailwind

colors: {
  custom: {
    50: '#99bbe6',
    500: '#669fdb',
    950: '#000000',
  },
}

SCSS

$custom: #669fdb;
$custom-light: #99bbe6;
$custom-dark: #000000;

JSON

{
  "hex": "#669fdb",
  "rgb": {
    "r": 102,
    "g": 159,
    "b": 219
  },
  "hsl": {
    "h": 210.769,
    "s": 61.905,
    "l": 62.941
  },
  "oklch": {
    "l": 0.6879,
    "c": 0.10746,
    "h": 250.8
  },
  "luminance": 0.32736
}

Semantic roles & 50–950 ramp

primary

#669FDB

secondary

#E3CFB9

accent

#751CCA

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #669FDB

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

Preview Lab → · Contrast checker → · Palette generator →