#667BBB#667BBB

#667BBB is a mid, moderate blue. Relative luminance 0.206; OKLCH L 59.4% C 0.101 H 269.3°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#667BBB
RGB	rgb(102, 123, 187)
HSL	hsl(225, 38%, 57%)
HSV	hsv(225, 45%, 73%)
CMYK	cmyk(45.5%, 34.2%, 0%, 26.7%)
CIE-LAB	lab(52.48, 9.60, -36.06)
CIE-LCH	lch(52.48, 37.32, 284.91°)
OKLab	oklab(59.37% -0.0012 -0.1013)
OKLCH	oklch(59.37% 0.101 269.3)
XYZ	xyz(21.5293, 20.5773, 49.8415)
Luminance	0.2058 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#667BBB #BBA666

analogous

#66A6BB #667BBB #7C66BB

triadic

#667BBB #BB667B #7BBB66

tetradic

#667BBB #BB66A6 #BBA666 #66BB7C

square

#667BBB #BB66A6 #BBA666 #66BB7C

split-complementary

#667BBB #BB7C66 #A6BB66

monochromatic

#334373 #465C9E #667BBB #90A0CE #BBC4E1

Accessibility & contrast

On white

4.10

#667BBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#667BBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #667BBB

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##667BBB	#FFFFFF	#000000	##000000
##667BBB	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6481BE

Deuteranopia (green-blind)

#5C7ABA

Tritanopia (blue-blind)

#478892

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #667bbb;
/* rgb */ color: rgb(102, 123, 187);
/* oklch */ color: oklch(59.4% 0.101 269.3);

Tailwind

colors: {
  custom: {
    50: '#96a0cf',
    500: '#667bbb',
    950: '#000000',
  },
}

SCSS

$custom: #667bbb;
$custom-light: #96a0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#667bbb",
  "rgb": {
    "r": 102,
    "g": 123,
    "b": 187
  },
  "hsl": {
    "h": 225.176,
    "s": 38.462,
    "l": 56.667
  },
  "oklch": {
    "l": 0.59373,
    "c": 0.10133,
    "h": 269.3
  },
  "luminance": 0.20579
}

Semantic roles & 50–950 ramp

primary

#667BBB

secondary

#D0C7AD

accent

#B159CE

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0E14

muted

#7E7E82

Preview Lab

Preview with #667BBB

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

Preview Lab → · Contrast checker → · Palette generator →