#667EA4#667EA4

#667EA4 is a mid, moderate blue. Relative luminance 0.204; OKLCH L 58.9% C 0.065 H 259.4°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#667EA4
RGB	rgb(102, 126, 164)
HSL	hsl(217, 25%, 52%)
HSV	hsv(217, 38%, 64%)
CMYK	cmyk(37.8%, 23.2%, 0%, 35.7%)
CIE-LAB	lab(52.32, 1.13, -23.05)
CIE-LCH	lch(52.32, 23.08, 272.81°)
OKLab	oklab(58.91% -0.0119 -0.0639)
OKLCH	oklch(58.91% 0.065 259.4)
XYZ	xyz(19.6391, 20.4259, 38.0225)
Luminance	0.2043 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#667EA4 #A48C66

analogous

#669DA4 #667EA4 #6D66A4

triadic

#667EA4 #A4667E #7EA466

tetradic

#667EA4 #A4669D #A48C66 #66A46D

square

#667EA4 #A4669D #A48C66 #66A46D

split-complementary

#667EA4 #A46D66 #9DA466

monochromatic

#36445A #4C6180 #667EA4 #8C9EBB #B3BFD2

Accessibility & contrast

On white

4.13

#667EA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#667EA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #667EA4

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##667EA4	#FFFFFF	#000000	##000000
##667EA4	1.00	4.13	5.09	5.09
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7180A6

Deuteranopia (green-blind)

#6A7AA3

Tritanopia (blue-blind)

#52868B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #667ea4;
/* rgb */ color: rgb(102, 126, 164);
/* oklch */ color: oklch(58.9% 0.065 259.4);

Tailwind

colors: {
  custom: {
    50: '#94a3bf',
    500: '#667ea4',
    950: '#000000',
  },
}

SCSS

$custom: #667ea4;
$custom-light: #94a3bf;
$custom-dark: #000000;

JSON

{
  "hex": "#667ea4",
  "rgb": {
    "r": 102,
    "g": 126,
    "b": 164
  },
  "hsl": {
    "h": 216.774,
    "s": 25.41,
    "l": 52.157
  },
  "oklch": {
    "l": 0.5891,
    "c": 0.06499,
    "h": 259.4
  },
  "luminance": 0.20427
}

Semantic roles & 50–950 ramp

primary

#667EA4

secondary

#C0B6A5

accent

#9E66C2

background

#F9FAFB

surface

#F1F3F7

border

#CBCDD0

text

#0D0F12

muted

#7E7F81

Preview Lab

Preview with #667EA4

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

Preview Lab → · Contrast checker → · Palette generator →