#667BB4#667BB4

#667BB4 is a mid, moderate blue. Relative luminance 0.203; OKLCH L 59.0% C 0.091 H 268.1°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#667BB4
RGB	rgb(102, 123, 180)
HSL	hsl(224, 34%, 55%)
HSV	hsv(224, 43%, 71%)
CMYK	cmyk(43.3%, 31.7%, 0%, 29.4%)
CIE-LAB	lab(52.16, 7.52, -32.55)
CIE-LCH	lch(52.16, 33.40, 283.00°)
OKLab	oklab(59.01% -0.003 -0.0911)
OKLCH	oklch(59.01% 0.091 268.1)
XYZ	xyz(20.7981, 20.2849, 45.9906)
Luminance	0.2029 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#667BB4 #B49F66

analogous

#66A2B4 #667BB4 #7866B4

triadic

#667BB4 #B4667B #7BB466

tetradic

#667BB4 #B466A2 #B49F66 #66B478

square

#667BB4 #B466A2 #B49F66 #66B478

split-complementary

#667BB4 #B47866 #A2B466

monochromatic

#34436B #495D94 #667BB4 #8F9EC8 #B8C2DC

Accessibility & contrast

On white

4.15

#667BB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#667BB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #667BB4

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##667BB4	#FFFFFF	#000000	##000000
##667BB4	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6780B6

Deuteranopia (green-blind)

#5F79B3

Tritanopia (blue-blind)

#4B878F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #667bb4;
/* rgb */ color: rgb(102, 123, 180);
/* oklch */ color: oklch(59.0% 0.091 268.1);

Tailwind

colors: {
  custom: {
    50: '#95a1ca',
    500: '#667bb4',
    950: '#000000',
  },
}

SCSS

$custom: #667bb4;
$custom-light: #95a1ca;
$custom-dark: #000000;

JSON

{
  "hex": "#667bb4",
  "rgb": {
    "r": 102,
    "g": 123,
    "b": 180
  },
  "hsl": {
    "h": 223.846,
    "s": 34.211,
    "l": 55.294
  },
  "oklch": {
    "l": 0.59013,
    "c": 0.09119,
    "h": 268.1
  },
  "luminance": 0.20286
}

Semantic roles & 50–950 ramp

primary

#667BB4

secondary

#CBC2AB

accent

#AD5ECA

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0E13

muted

#7E7E82

Preview Lab

Preview with #667BB4

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

Preview Lab → · Contrast checker → · Palette generator →