#667CDD#667CDD

#667CDD is a mid, vivid blue. Relative luminance 0.225; OKLCH L 61.5% C 0.148 H 271.8°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#667CDD
RGB	rgb(102, 124, 221)
HSL	hsl(229, 64%, 63%)
HSV	hsv(229, 54%, 87%)
CMYK	cmyk(53.8%, 43.9%, 0%, 13.3%)
CIE-LAB	lab(54.51, 19.54, -52.16)
CIE-LCH	lch(54.51, 55.70, 290.54°)
OKLab	oklab(61.51% 0.0046 -0.1483)
OKLCH	oklch(61.51% 0.148 271.8)
XYZ	xyz(25.7340, 22.4587, 71.3715)
Luminance	0.2246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#667CDD #DDC766

analogous

#66B7DD #667CDD #8B66DD

triadic

#667CDD #DD667C #7CDD66

tetradic

#667CDD #DD66B7 #DDC766 #66DD8B

square

#667CDD #DD66B7 #DDC766 #66DD8B

split-complementary

#667CDD #DD8B66 #B7DD66

monochromatic

#243CA4 #3451D2 #667CDD #98A7E8 #CAD2F3

Accessibility & contrast

On white

3.82

#667CDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#667CDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #667CDD

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##667CDD	#FFFFFF	#000000	##000000
##667CDD	1.00	3.82	5.49	5.49
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5288E1

Deuteranopia (green-blind)

#447EDB

Tritanopia (blue-blind)

#2991A2

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #667cdd;
/* rgb */ color: rgb(102, 124, 221);
/* oklch */ color: oklch(61.5% 0.148 271.8);

Tailwind

colors: {
  custom: {
    50: '#99a1e8',
    500: '#667cdd',
    950: '#000000',
  },
}

SCSS

$custom: #667cdd;
$custom-light: #99a1e8;
$custom-dark: #000000;

JSON

{
  "hex": "#667cdd",
  "rgb": {
    "r": 102,
    "g": 124,
    "b": 221
  },
  "hsl": {
    "h": 228.908,
    "s": 63.636,
    "l": 63.333
  },
  "oklch": {
    "l": 0.61505,
    "c": 0.14841,
    "h": 271.8
  },
  "luminance": 0.22461
}

Semantic roles & 50–950 ramp

primary

#667CDD

secondary

#E5DDBA

accent

#AB1ACB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0E16

muted

#7E7E84

Preview Lab

Preview with #667CDD

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

Preview Lab → · Contrast checker → · Palette generator →