#669EFB#669EFB

#669EFB is a light, vivid blue. Relative luminance 0.342; OKLCH L 70.2% C 0.149 H 260.0°. Best body text is #000000 at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#669EFB
RGB	rgb(102, 158, 251)
HSL	hsl(217, 95%, 69%)
HSV	hsv(217, 59%, 98%)
CMYK	cmyk(59.4%, 37.1%, 0%, 1.6%)
CIE-LAB	lab(65.15, 8.97, -51.86)
CIE-LCH	lch(65.15, 52.63, 279.81°)
OKLab	oklab(70.22% -0.0258 -0.1471)
OKLCH	oklch(70.22% 0.149 260)
XYZ	xyz(35.1128, 34.2405, 96.0068)
Luminance	0.3424 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669EFB #FBC366

analogous

#66E8FB #669EFB #7966FB

triadic

#669EFB #FB669E #9EFB66

tetradic

#669EFB #FB66E8 #FBC366 #66FB79

square

#669EFB #FB66E8 #FBC366 #66FB79

split-complementary

#669EFB #FB7966 #E8FB66

monochromatic

#0658E1 #2A78F9 #669EFB #A2C4FD #DDEAFE

Accessibility & contrast

On white

2.68

#669EFB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.85

#669EFB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669EFB

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669EFB	#FFFFFF	#000000	##000000
##669EFB	1.00	2.68	7.85	7.85
#FFFFFF	2.68	1.00	21.00	21.00
#000000	7.85	21.00	1.00	1.00
##000000	7.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#76A6FF

Deuteranopia (green-blind)

#6298F9

Tritanopia (blue-blind)

#00B3C0

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #669efb;
/* rgb */ color: rgb(102, 158, 251);
/* oklch */ color: oklch(70.2% 0.149 260.0);

Tailwind

colors: {
  custom: {
    50: '#9dbafd',
    500: '#669efb',
    950: '#000000',
  },
}

SCSS

$custom: #669efb;
$custom-light: #9dbafd;
$custom-dark: #000000;

JSON

{
  "hex": "#669efb",
  "rgb": {
    "r": 102,
    "g": 158,
    "b": 251
  },
  "hsl": {
    "h": 217.45,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.70221,
    "c": 0.14937,
    "h": 260
  },
  "luminance": 0.34244
}

Semantic roles & 50–950 ramp

primary

#669EFB

secondary

#F4E4C9

accent

#8F00E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669EFB

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

Preview Lab → · Contrast checker → · Palette generator →