#668AD4#668AD4

#668AD4 is a light, moderate blue. Relative luminance 0.258; OKLCH L 63.9% C 0.119 H 263.7°. Best body text is #000000 at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#668AD4
RGB	rgb(102, 138, 212)
HSL	hsl(220, 56%, 62%)
HSV	hsv(220, 52%, 83%)
CMYK	cmyk(51.9%, 34.9%, 0%, 16.9%)
CIE-LAB	lab(57.80, 8.31, -41.89)
CIE-LCH	lch(57.80, 42.71, 281.23°)
OKLab	oklab(63.89% -0.0131 -0.1182)
OKLCH	oklch(63.89% 0.119 263.7)
XYZ	xyz(26.4477, 25.7533, 65.8518)
Luminance	0.2576 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668AD4 #D4B066

analogous

#66C1D4 #668AD4 #7966D4

triadic

#668AD4 #D4668A #8AD466

tetradic

#668AD4 #D466C1 #D4B066 #66D479

square

#668AD4 #D466C1 #D4B066 #66D479

split-complementary

#668AD4 #D47966 #C1D466

monochromatic

#2A4D96 #3766C5 #668AD4 #96AFE1 #C6D3EF

Accessibility & contrast

On white

3.41

#668AD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.15

#668AD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668AD4

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668AD4	#FFFFFF	#000000	##000000
##668AD4	1.00	3.41	6.15	6.15
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.15	21.00	1.00	1.00
##000000	6.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D90D7

Deuteranopia (green-blind)

#6086D2

Tritanopia (blue-blind)

#309AA5

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #668ad4;
/* rgb */ color: rgb(102, 138, 212);
/* oklch */ color: oklch(63.9% 0.119 263.7);

Tailwind

colors: {
  custom: {
    50: '#98abe1',
    500: '#668ad4',
    950: '#000000',
  },
}

SCSS

$custom: #668ad4;
$custom-light: #98abe1;
$custom-dark: #000000;

JSON

{
  "hex": "#668ad4",
  "rgb": {
    "r": 102,
    "g": 138,
    "b": 212
  },
  "hsl": {
    "h": 220.364,
    "s": 56.122,
    "l": 61.569
  },
  "oklch": {
    "l": 0.63888,
    "c": 0.11891,
    "h": 263.7
  },
  "luminance": 0.25755
}

Semantic roles & 50–950 ramp

primary

#668AD4

secondary

#DFD2B6

accent

#8F22C4

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #668AD4

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

Preview Lab → · Contrast checker → · Palette generator →