#667BD5#667BD5

#667BD5 is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.8% C 0.138 H 271.8°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#667BD5
RGB	rgb(102, 123, 213)
HSL	hsl(229, 57%, 62%)
HSV	hsv(229, 52%, 84%)
CMYK	cmyk(52.1%, 42.3%, 0%, 16.5%)
CIE-LAB	lab(53.81, 17.61, -48.78)
CIE-LCH	lch(53.81, 51.86, 289.86°)
OKLab	oklab(60.82% 0.0044 -0.1384)
OKLCH	oklch(60.82% 0.138 271.8)
XYZ	xyz(24.5688, 21.7932, 65.8497)
Luminance	0.2180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#667BD5 #D5C066

analogous

#66B2D5 #667BD5 #8966D5

triadic

#667BD5 #D5667B #7BD566

tetradic

#667BD5 #D566B2 #D5C066 #66D589

square

#667BD5 #D566B2 #D5C066 #66D589

split-complementary

#667BD5 #D58966 #B2D566

monochromatic

#293E97 #3752C7 #667BD5 #96A4E2 #C6CEEF

Accessibility & contrast

On white

3.92

#667BD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#667BD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #667BD5

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##667BD5	#FFFFFF	#000000	##000000
##667BD5	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5686D8

Deuteranopia (green-blind)

#4A7CD3

Tritanopia (blue-blind)

#338E9E

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #667bd5;
/* rgb */ color: rgb(102, 123, 213);
/* oklch */ color: oklch(60.8% 0.138 271.8);

Tailwind

colors: {
  custom: {
    50: '#99a0e2',
    500: '#667bd5',
    950: '#000000',
  },
}

SCSS

$custom: #667bd5;
$custom-light: #99a0e2;
$custom-dark: #000000;

JSON

{
  "hex": "#667bd5",
  "rgb": {
    "r": 102,
    "g": 123,
    "b": 213
  },
  "hsl": {
    "h": 228.649,
    "s": 56.923,
    "l": 61.765
  },
  "oklch": {
    "l": 0.60824,
    "c": 0.13849,
    "h": 271.8
  },
  "luminance": 0.21795
}

Semantic roles & 50–950 ramp

primary

#667BD5

secondary

#E0D8B7

accent

#A621C4

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #667BD5

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

Preview Lab → · Contrast checker → · Palette generator →