#669EF8#669EF8

#669EF8 is a light, vivid blue. Relative luminance 0.341; OKLCH L 70.1% C 0.145 H 259.5°. Best body text is #000000 at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#669EF8
RGB	rgb(102, 158, 248)
HSL	hsl(217, 91%, 69%)
HSV	hsv(217, 59%, 97%)
CMYK	cmyk(58.9%, 36.3%, 0%, 2.7%)
CIE-LAB	lab(65.00, 8.00, -50.46)
CIE-LCH	lch(65.00, 51.09, 279.01°)
OKLab	oklab(70.06% -0.0265 -0.143)
OKLCH	oklch(70.06% 0.145 259.5)
XYZ	xyz(34.6437, 34.0528, 93.5359)
Luminance	0.3406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669EF8 #F8C066

analogous

#66E7F8 #669EF8 #7766F8

triadic

#669EF8 #F8669E #9EF866

tetradic

#669EF8 #F866E7 #F8C066 #66F877

square

#669EF8 #F866E7 #F8C066 #66F877

split-complementary

#669EF8 #F87766 #E7F866

monochromatic

#0A5ADA #2B79F5 #669EF8 #A1C3FB #DBE8FD

Accessibility & contrast

On white

2.69

#669EF8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.81

#669EF8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669EF8

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669EF8	#FFFFFF	#000000	##000000
##669EF8	1.00	2.69	7.81	7.81
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.81	21.00	1.00	1.00
##000000	7.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#78A5FC

Deuteranopia (green-blind)

#6597F6

Tritanopia (blue-blind)

#00B2BF

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #669ef8;
/* rgb */ color: rgb(102, 158, 248);
/* oklch */ color: oklch(70.1% 0.145 259.5);

Tailwind

colors: {
  custom: {
    50: '#9cbafb',
    500: '#669ef8',
    950: '#000000',
  },
}

SCSS

$custom: #669ef8;
$custom-light: #9cbafb;
$custom-dark: #000000;

JSON

{
  "hex": "#669ef8",
  "rgb": {
    "r": 102,
    "g": 158,
    "b": 248
  },
  "hsl": {
    "h": 216.986,
    "s": 91.25,
    "l": 68.627
  },
  "oklch": {
    "l": 0.70057,
    "c": 0.14546,
    "h": 259.5
  },
  "luminance": 0.34056
}

Semantic roles & 50–950 ramp

primary

#669EF8

secondary

#F3E2C7

accent

#8D00E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669EF8

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

Preview Lab → · Contrast checker → · Palette generator →