#667DDD#667DDD

#667DDD is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.7% C 0.147 H 271.4°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#667DDD
RGB	rgb(102, 125, 221)
HSL	hsl(228, 64%, 63%)
HSV	hsv(228, 54%, 87%)
CMYK	cmyk(53.8%, 43.4%, 0%, 13.3%)
CIE-LAB	lab(54.77, 18.93, -51.75)
CIE-LCH	lch(54.77, 55.10, 290.10°)
OKLab	oklab(61.71% 0.0035 -0.1471)
OKLCH	oklch(61.71% 0.147 271.4)
XYZ	xyz(25.8600, 22.7107, 71.4135)
Luminance	0.2271 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#667DDD #DDC666

analogous

#66B8DD #667DDD #8A66DD

triadic

#667DDD #DD667D #7DDD66

tetradic

#667DDD #DD66B8 #DDC666 #66DD8A

square

#667DDD #DD66B8 #DDC666 #66DD8A

split-complementary

#667DDD #DD8A66 #B8DD66

monochromatic

#243DA4 #3452D2 #667DDD #98A8E8 #CAD2F3

Accessibility & contrast

On white

3.79

#667DDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#667DDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #667DDD

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##667DDD	#FFFFFF	#000000	##000000
##667DDD	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5489E1

Deuteranopia (green-blind)

#467EDB

Tritanopia (blue-blind)

#2992A2

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #667ddd;
/* rgb */ color: rgb(102, 125, 221);
/* oklch */ color: oklch(61.7% 0.147 271.4);

Tailwind

colors: {
  custom: {
    50: '#99a2e8',
    500: '#667ddd',
    950: '#000000',
  },
}

SCSS

$custom: #667ddd;
$custom-light: #99a2e8;
$custom-dark: #000000;

JSON

{
  "hex": "#667ddd",
  "rgb": {
    "r": 102,
    "g": 125,
    "b": 221
  },
  "hsl": {
    "h": 228.403,
    "s": 63.636,
    "l": 63.333
  },
  "oklch": {
    "l": 0.61706,
    "c": 0.14714,
    "h": 271.4
  },
  "luminance": 0.22712
}

Semantic roles & 50–950 ramp

primary

#667DDD

secondary

#E5DCBA

accent

#A91ACB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0F16

muted

#7E7E84

Preview Lab

Preview with #667DDD

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

Preview Lab → · Contrast checker → · Palette generator →