#667BDD#667BDD

#667BDD is a mid, vivid blue. Relative luminance 0.222; OKLCH L 61.3% C 0.150 H 272.2°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#667BDD
RGB	rgb(102, 123, 221)
HSL	hsl(229, 64%, 63%)
HSV	hsv(229, 54%, 87%)
CMYK	cmyk(53.8%, 44.3%, 0%, 13.3%)
CIE-LAB	lab(54.25, 20.15, -52.58)
CIE-LCH	lch(54.25, 56.31, 290.96°)
OKLab	oklab(61.31% 0.0057 -0.1496)
OKLCH	oklch(61.31% 0.15 272.2)
XYZ	xyz(25.6094, 22.2094, 71.3299)
Luminance	0.2221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#667BDD #DDC866

analogous

#66B6DD #667BDD #8C66DD

triadic

#667BDD #DD667B #7BDD66

tetradic

#667BDD #DD66B6 #DDC866 #66DD8C

square

#667BDD #DD66B6 #DDC866 #66DD8C

split-complementary

#667BDD #DD8C66 #B6DD66

monochromatic

#243BA4 #3450D2 #667BDD #98A6E8 #CAD1F3

Accessibility & contrast

On white

3.86

#667BDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#667BDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #667BDD

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##667BDD	#FFFFFF	#000000	##000000
##667BDD	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5087E1

Deuteranopia (green-blind)

#427DDB

Tritanopia (blue-blind)

#2990A1

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #667bdd;
/* rgb */ color: rgb(102, 123, 221);
/* oklch */ color: oklch(61.3% 0.150 272.2);

Tailwind

colors: {
  custom: {
    50: '#9aa0e8',
    500: '#667bdd',
    950: '#000000',
  },
}

SCSS

$custom: #667bdd;
$custom-light: #9aa0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#667bdd",
  "rgb": {
    "r": 102,
    "g": 123,
    "b": 221
  },
  "hsl": {
    "h": 229.412,
    "s": 63.636,
    "l": 63.333
  },
  "oklch": {
    "l": 0.61305,
    "c": 0.14969,
    "h": 272.2
  },
  "luminance": 0.22211
}

Semantic roles & 50–950 ramp

primary

#667BDD

secondary

#E5DDBA

accent

#AC1ACB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0E16

muted

#7E7E84

Preview Lab

Preview with #667BDD

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

Preview Lab → · Contrast checker → · Palette generator →