#669AFB#669AFB

#669AFB is a light, vivid blue. Relative luminance 0.329; OKLCH L 69.4% C 0.154 H 261.9°. Best body text is #000000 at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#669AFB
RGB	rgb(102, 154, 251)
HSL	hsl(219, 95%, 69%)
HSV	hsv(219, 59%, 98%)
CMYK	cmyk(59.4%, 38.6%, 0%, 1.6%)
CIE-LAB	lab(64.08, 11.30, -53.57)
CIE-LCH	lch(64.08, 54.75, 281.91°)
OKLab	oklab(69.39% -0.0217 -0.1521)
OKLCH	oklch(69.39% 0.154 261.9)
XYZ	xyz(34.4416, 32.8980, 95.7830)
Luminance	0.3290 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669AFB #FBC766

analogous

#66E5FB #669AFB #7D66FB

triadic

#669AFB #FB669A #9AFB66

tetradic

#669AFB #FB66E5 #FBC766 #66FB7D

square

#669AFB #FB66E5 #FBC766 #66FB7D

split-complementary

#669AFB #FB7D66 #E5FB66

monochromatic

#0652E1 #2A73F9 #669AFB #A2C1FD #DDE9FE

Accessibility & contrast

On white

2.77

#669AFB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.58

#669AFB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669AFB

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669AFB	#FFFFFF	#000000	##000000
##669AFB	1.00	2.77	7.58	7.58
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.58	21.00	1.00	1.00
##000000	7.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#70A3FF

Deuteranopia (green-blind)

#5C95F9

Tritanopia (blue-blind)

#00B0BE

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #669afb;
/* rgb */ color: rgb(102, 154, 251);
/* oklch */ color: oklch(69.4% 0.154 261.9);

Tailwind

colors: {
  custom: {
    50: '#9db7fd',
    500: '#669afb',
    950: '#000000',
  },
}

SCSS

$custom: #669afb;
$custom-light: #9db7fd;
$custom-dark: #000000;

JSON

{
  "hex": "#669afb",
  "rgb": {
    "r": 102,
    "g": 154,
    "b": 251
  },
  "hsl": {
    "h": 219.06,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.69387,
    "c": 0.15369,
    "h": 261.9
  },
  "luminance": 0.32901
}

Semantic roles & 50–950 ramp

primary

#669AFB

secondary

#F4E5C9

accent

#9500E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1118

muted

#7F8086

Preview Lab

Preview with #669AFB

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

Preview Lab → · Contrast checker → · Palette generator →