#669EF5#669EF5

#669EF5 is a light, vivid blue. Relative luminance 0.339; OKLCH L 69.9% C 0.142 H 258.9°. Best body text is #000000 at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#669EF5
RGB	rgb(102, 158, 245)
HSL	hsl(217, 88%, 68%)
HSV	hsv(217, 58%, 96%)
CMYK	cmyk(58.4%, 35.5%, 0%, 3.9%)
CIE-LAB	lab(64.86, 7.04, -49.05)
CIE-LCH	lch(64.86, 49.55, 278.17°)
OKLab	oklab(69.9% -0.0272 -0.1389)
OKLCH	oklch(69.9% 0.142 258.9)
XYZ	xyz(34.1820, 33.8681, 91.1044)
Luminance	0.3387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669EF5 #F5BD66

analogous

#66E6F5 #669EF5 #7566F5

triadic

#669EF5 #F5669E #9EF566

tetradic

#669EF5 #F566E6 #F5BD66 #66F575

square

#669EF5 #F566E6 #F5BD66 #66F575

split-complementary

#669EF5 #F57566 #E6F566

monochromatic

#0E5BD3 #2D7AF1 #669EF5 #9FC2F9 #D9E7FD

Accessibility & contrast

On white

2.70

#669EF5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.77

#669EF5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669EF5

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669EF5	#FFFFFF	#000000	##000000
##669EF5	1.00	2.70	7.77	7.77
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.77	21.00	1.00	1.00
##000000	7.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7AA5F9

Deuteranopia (green-blind)

#6797F3

Tritanopia (blue-blind)

#00B2BE

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #669ef5;
/* rgb */ color: rgb(102, 158, 245);
/* oklch */ color: oklch(69.9% 0.142 258.9);

Tailwind

colors: {
  custom: {
    50: '#9cbaf9',
    500: '#669ef5',
    950: '#000000',
  },
}

SCSS

$custom: #669ef5;
$custom-light: #9cbaf9;
$custom-dark: #000000;

JSON

{
  "hex": "#669ef5",
  "rgb": {
    "r": 102,
    "g": 158,
    "b": 245
  },
  "hsl": {
    "h": 216.503,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.69895,
    "c": 0.14155,
    "h": 258.9
  },
  "luminance": 0.33871
}

Semantic roles & 50–950 ramp

primary

#669EF5

secondary

#F1E0C6

accent

#8B01E4

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669EF5

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

Preview Lab → · Contrast checker → · Palette generator →