#669EF6#669EF6

#669EF6 is a light, vivid blue. Relative luminance 0.339; OKLCH L 69.9% C 0.143 H 259.1°. Best body text is #000000 at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#669EF6
RGB	rgb(102, 158, 246)
HSL	hsl(217, 89%, 68%)
HSV	hsv(217, 59%, 96%)
CMYK	cmyk(58.5%, 35.8%, 0%, 3.5%)
CIE-LAB	lab(64.91, 7.36, -49.52)
CIE-LCH	lch(64.91, 50.07, 278.46°)
OKLab	oklab(69.95% -0.027 -0.1403)
OKLCH	oklch(69.95% 0.143 259.1)
XYZ	xyz(34.3351, 33.9294, 91.9105)
Luminance	0.3393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669EF6 #F6BE66

analogous

#66E6F6 #669EF6 #7666F6

triadic

#669EF6 #F6669E #9EF666

tetradic

#669EF6 #F666E6 #F6BE66 #66F676

square

#669EF6 #F666E6 #F6BE66 #66F676

split-complementary

#669EF6 #F67666 #E6F666

monochromatic

#0D5BD5 #2C79F3 #669EF6 #A0C3F9 #DAE7FD

Accessibility & contrast

On white

2.70

#669EF6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.79

#669EF6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669EF6

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669EF6	#FFFFFF	#000000	##000000
##669EF6	1.00	2.70	7.79	7.79
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.79	21.00	1.00	1.00
##000000	7.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#79A5FA

Deuteranopia (green-blind)

#6697F4

Tritanopia (blue-blind)

#00B2BE

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #669ef6;
/* rgb */ color: rgb(102, 158, 246);
/* oklch */ color: oklch(69.9% 0.143 259.1);

Tailwind

colors: {
  custom: {
    50: '#9cbaf9',
    500: '#669ef6',
    950: '#000000',
  },
}

SCSS

$custom: #669ef6;
$custom-light: #9cbaf9;
$custom-dark: #000000;

JSON

{
  "hex": "#669ef6",
  "rgb": {
    "r": 102,
    "g": 158,
    "b": 246
  },
  "hsl": {
    "h": 216.667,
    "s": 88.889,
    "l": 68.235
  },
  "oklch": {
    "l": 0.69949,
    "c": 0.14285,
    "h": 259.1
  },
  "luminance": 0.33932
}

Semantic roles & 50–950 ramp

primary

#669EF6

secondary

#F2E1C6

accent

#8C00E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669EF6

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

Preview Lab → · Contrast checker → · Palette generator →