#669EF4#669EF4

#669EF4 is a light, vivid blue. Relative luminance 0.338; OKLCH L 69.8% C 0.140 H 258.7°. Best body text is #000000 at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#669EF4
RGB	rgb(102, 158, 244)
HSL	hsl(216, 87%, 68%)
HSV	hsv(216, 58%, 96%)
CMYK	cmyk(58.2%, 35.2%, 0%, 4.3%)
CIE-LAB	lab(64.81, 6.72, -48.58)
CIE-LCH	lch(64.81, 49.04, 277.88°)
OKLab	oklab(69.84% -0.0275 -0.1375)
OKLCH	oklch(69.84% 0.14 258.7)
XYZ	xyz(34.0298, 33.8072, 90.3026)
Luminance	0.3381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669EF4 #F4BC66

analogous

#66E5F4 #669EF4 #7566F4

triadic

#669EF4 #F4669E #9EF466

tetradic

#669EF4 #F466E5 #F4BC66 #66F475

square

#669EF4 #F466E5 #F4BC66 #66F475

split-complementary

#669EF4 #F47566 #E5F466

monochromatic

#0F5BD1 #2D7AF0 #669EF4 #9FC2F8 #D8E6FC

Accessibility & contrast

On white

2.71

#669EF4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.76

#669EF4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669EF4

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669EF4	#FFFFFF	#000000	##000000
##669EF4	1.00	2.71	7.76	7.76
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.76	21.00	1.00	1.00
##000000	7.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7AA5F8

Deuteranopia (green-blind)

#6797F2

Tritanopia (blue-blind)

#00B1BE

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #669ef4;
/* rgb */ color: rgb(102, 158, 244);
/* oklch */ color: oklch(69.8% 0.140 258.7);

Tailwind

colors: {
  custom: {
    50: '#9cbaf8',
    500: '#669ef4',
    950: '#000000',
  },
}

SCSS

$custom: #669ef4;
$custom-light: #9cbaf8;
$custom-dark: #000000;

JSON

{
  "hex": "#669ef4",
  "rgb": {
    "r": 102,
    "g": 158,
    "b": 244
  },
  "hsl": {
    "h": 216.338,
    "s": 86.585,
    "l": 67.843
  },
  "oklch": {
    "l": 0.69841,
    "c": 0.14025,
    "h": 258.7
  },
  "luminance": 0.3381
}

Semantic roles & 50–950 ramp

primary

#669EF4

secondary

#F1E0C5

accent

#8A02E3

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669EF4

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

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