#669EF0#669EF0

#669EF0 is a light, vivid blue. Relative luminance 0.336; OKLCH L 69.6% C 0.135 H 257.8°. Best body text is #000000 at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#669EF0
RGB	rgb(102, 158, 240)
HSL	hsl(216, 82%, 67%)
HSV	hsv(216, 58%, 94%)
CMYK	cmyk(57.5%, 34.2%, 0%, 5.9%)
CIE-LAB	lab(64.62, 5.45, -46.69)
CIE-LCH	lch(64.62, 47.01, 276.66°)
OKLab	oklab(69.63% -0.0284 -0.132)
OKLCH	oklch(69.63% 0.135 257.8)
XYZ	xyz(33.4290, 33.5669, 87.1386)
Luminance	0.3357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669EF0 #F0B866

analogous

#66E3F0 #669EF0 #7366F0

triadic

#669EF0 #F0669E #9EF066

tetradic

#669EF0 #F066E3 #F0B866 #66F073

square

#669EF0 #F066E3 #F0B866 #66F073

split-complementary

#669EF0 #F07366 #E3F066

monochromatic

#145DC8 #2E7BEB #669EF0 #9EC1F5 #D5E5FB

Accessibility & contrast

On white

2.72

#669EF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.71

#669EF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669EF0

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669EF0	#FFFFFF	#000000	##000000
##669EF0	1.00	2.72	7.71	7.71
#FFFFFF	2.72	1.00	21.00	21.00
#000000	7.71	21.00	1.00	1.00
##000000	7.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7CA4F3

Deuteranopia (green-blind)

#6A97EE

Tritanopia (blue-blind)

#00B0BC

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #669ef0;
/* rgb */ color: rgb(102, 158, 240);
/* oklch */ color: oklch(69.6% 0.135 257.8);

Tailwind

colors: {
  custom: {
    50: '#9bbaf5',
    500: '#669ef0',
    950: '#000000',
  },
}

SCSS

$custom: #669ef0;
$custom-light: #9bbaf5;
$custom-dark: #000000;

JSON

{
  "hex": "#669ef0",
  "rgb": {
    "r": 102,
    "g": 158,
    "b": 240
  },
  "hsl": {
    "h": 215.652,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.69629,
    "c": 0.13505,
    "h": 257.8
  },
  "luminance": 0.3357
}

Semantic roles & 50–950 ramp

primary

#669EF0

secondary

#EFDDC3

accent

#8707DF

background

#FAFBFF

surface

#F4F6FE

border

#CED0D6

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669EF0

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

Preview Lab → · Contrast checker → · Palette generator →