#669DFF#669DFF

#669DFF is a light, vivid blue. Relative luminance 0.342; OKLCH L 70.2% C 0.156 H 261.2°. Best body text is #000000 at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#669DFF
RGB	rgb(102, 157, 255)
HSL	hsl(218, 100%, 70%)
HSV	hsv(218, 60%, 100%)
CMYK	cmyk(60%, 38.4%, 0%, 0%)
CIE-LAB	lab(65.09, 10.84, -54.15)
CIE-LCH	lch(65.09, 55.23, 281.32°)
OKLab	oklab(70.24% -0.0239 -0.1538)
OKLCH	oklch(70.24% 0.156 261.2)
XYZ	xyz(35.5802, 34.1556, 99.3060)
Luminance	0.3416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669DFF #FFC866

analogous

#66EAFF #669DFF #7B66FF

triadic

#669DFF #FF669D #9DFF66

tetradic

#669DFF #FF66EA #FFC866 #66FF7B

square

#669DFF #FF66EA #FFC866 #66FF7B

split-complementary

#669DFF #FF7B66 #EAFF66

monochromatic

#0054EB #2976FF #669DFF #A3C4FF #E0EBFF

Accessibility & contrast

On white

2.68

#669DFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.83

#669DFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669DFF

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669DFF	#FFFFFF	#000000	##000000
##669DFF	1.00	2.68	7.83	7.83
#FFFFFF	2.68	1.00	21.00	21.00
#000000	7.83	21.00	1.00	1.00
##000000	7.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#73A6FF

Deuteranopia (green-blind)

#5E97FD

Tritanopia (blue-blind)

#00B3C2

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #669dff;
/* rgb */ color: rgb(102, 157, 255);
/* oklch */ color: oklch(70.2% 0.156 261.2);

Tailwind

colors: {
  custom: {
    50: '#9db9ff',
    500: '#669dff',
    950: '#000000',
  },
}

SCSS

$custom: #669dff;
$custom-light: #9db9ff;
$custom-dark: #000000;

JSON

{
  "hex": "#669dff",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 255
  },
  "hsl": {
    "h": 218.431,
    "s": 100,
    "l": 70
  },
  "oklch": {
    "l": 0.70235,
    "c": 0.15568,
    "h": 261.2
  },
  "luminance": 0.34159
}

Semantic roles & 50–950 ramp

primary

#669DFF

secondary

#F6E6CB

accent

#9300E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1118

muted

#7F8086

Preview Lab

Preview with #669DFF

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

Preview Lab → · Contrast checker → · Palette generator →