#669FF1#669FF1

#669FF1 is a light, vivid blue. Relative luminance 0.340; OKLCH L 69.9% C 0.135 H 257.5°. Best body text is #000000 at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#669FF1
RGB	rgb(102, 159, 241)
HSL	hsl(215, 83%, 67%)
HSV	hsv(215, 58%, 95%)
CMYK	cmyk(57.7%, 34%, 0%, 5.5%)
CIE-LAB	lab(64.94, 5.19, -46.73)
CIE-LCH	lch(64.94, 47.02, 276.34°)
OKLab	oklab(69.9% -0.0293 -0.1321)
OKLCH	oklch(69.9% 0.135 257.5)
XYZ	xyz(33.7492, 33.9690, 87.9802)
Luminance	0.3397 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669FF1 #F1B866

analogous

#66E4F1 #669FF1 #7366F1

triadic

#669FF1 #F1669F #9FF166

tetradic

#669FF1 #F166E4 #F1B866 #66F173

square

#669FF1 #F166E4 #F1B866 #66F173

split-complementary

#669FF1 #F17366 #E4F166

monochromatic

#125ECA #2E7CEC #669FF1 #9EC2F6 #D6E5FB

Accessibility & contrast

On white

2.69

#669FF1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.79

#669FF1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669FF1

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669FF1	#FFFFFF	#000000	##000000
##669FF1	1.00	2.69	7.79	7.79
#FFFFFF	2.69	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)

#7DA5F4

Deuteranopia (green-blind)

#6B98EF

Tritanopia (blue-blind)

#00B1BD

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #669ff1;
/* rgb */ color: rgb(102, 159, 241);
/* oklch */ color: oklch(69.9% 0.135 257.5);

Tailwind

colors: {
  custom: {
    50: '#9bbbf6',
    500: '#669ff1',
    950: '#000000',
  },
}

SCSS

$custom: #669ff1;
$custom-light: #9bbbf6;
$custom-dark: #000000;

JSON

{
  "hex": "#669ff1",
  "rgb": {
    "r": 102,
    "g": 159,
    "b": 241
  },
  "hsl": {
    "h": 215.396,
    "s": 83.234,
    "l": 67.255
  },
  "oklch": {
    "l": 0.69895,
    "c": 0.13534,
    "h": 257.5
  },
  "luminance": 0.33972
}

Semantic roles & 50–950 ramp

primary

#669FF1

secondary

#EFDDC3

accent

#8606E0

background

#FAFBFF

surface

#F4F6FE

border

#CED0D6

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669FF1

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

Preview Lab → · Contrast checker → · Palette generator →