#669EEF#669EEF

#669EEF is a light, vivid blue. Relative luminance 0.335; OKLCH L 69.6% C 0.134 H 257.6°. Best body text is #000000 at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#669EEF
RGB	rgb(102, 158, 239)
HSL	hsl(215, 81%, 67%)
HSV	hsv(215, 57%, 94%)
CMYK	cmyk(57.3%, 33.9%, 0%, 6.3%)
CIE-LAB	lab(64.57, 5.13, -46.22)
CIE-LCH	lch(64.57, 46.50, 276.34°)
OKLab	oklab(69.58% -0.0287 -0.1306)
OKLCH	oklch(69.58% 0.134 257.6)
XYZ	xyz(33.2809, 33.5077, 86.3584)
Luminance	0.3351 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669EEF #EFB766

analogous

#66E3EF #669EEF #7366EF

triadic

#669EEF #EF669E #9EEF66

tetradic

#669EEF #EF66E3 #EFB766 #66EF73

square

#669EEF #EF66E3 #EFB766 #66EF73

split-complementary

#669EEF #EF7366 #E3EF66

monochromatic

#155DC6 #2F7BE9 #669EEF #9DC1F5 #D5E4FB

Accessibility & contrast

On white

2.73

#669EEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.70

#669EEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669EEF

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669EEF	#FFFFFF	#000000	##000000
##669EEF	1.00	2.73	7.70	7.70
#FFFFFF	2.73	1.00	21.00	21.00
#000000	7.70	21.00	1.00	1.00
##000000	7.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7CA4F2

Deuteranopia (green-blind)

#6B97ED

Tritanopia (blue-blind)

#00B0BB

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #669eef;
/* rgb */ color: rgb(102, 158, 239);
/* oklch */ color: oklch(69.6% 0.134 257.6);

Tailwind

colors: {
  custom: {
    50: '#9bbaf4',
    500: '#669eef',
    950: '#000000',
  },
}

SCSS

$custom: #669eef;
$custom-light: #9bbaf4;
$custom-dark: #000000;

JSON

{
  "hex": "#669eef",
  "rgb": {
    "r": 102,
    "g": 158,
    "b": 239
  },
  "hsl": {
    "h": 215.474,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.69576,
    "c": 0.13376,
    "h": 257.6
  },
  "luminance": 0.3351
}

Semantic roles & 50–950 ramp

primary

#669EEF

secondary

#EEDCC2

accent

#8608DD

background

#FAFBFE

surface

#F4F6FD

border

#CED0D5

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669EEF

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

Preview Lab → · Contrast checker → · Palette generator →