#3667B8#3667B8

#3667B8 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.2% C 0.139 H 259.9°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#3667B8
RGB	rgb(54, 103, 184)
HSL	hsl(217, 55%, 47%)
HSV	hsv(217, 71%, 72%)
CMYK	cmyk(70.7%, 44%, 0%, 27.8%)
CIE-LAB	lab(44.15, 11.05, -47.69)
CIE-LCH	lch(44.15, 48.96, 283.04°)
OKLab	oklab(52.2% -0.0243 -0.1364)
OKLCH	oklch(52.2% 0.139 259.9)
XYZ	xyz(15.0202, 13.9439, 47.2380)
Luminance	0.1394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3667B8 #B88736

analogous

#36A8B8 #3667B8 #4636B8

triadic

#3667B8 #B83667 #67B836

tetradic

#3667B8 #B836A8 #B88736 #36B846

square

#3667B8 #B836A8 #B88736 #36B846

split-complementary

#3667B8 #B84636 #A8B836

monochromatic

#1A3259 #284D89 #3667B8 #5C87CF #8BAADD

Accessibility & contrast

On white

5.54

#3667B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#3667B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3667B8

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3667B8	#FFFFFF	#000000	##FFFFFF
##3667B8	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F6FBB

Deuteranopia (green-blind)

#2863B6

Tritanopia (blue-blind)

#007A86

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3667b8;
/* rgb */ color: rgb(54, 103, 184);
/* oklch */ color: oklch(52.2% 0.139 259.9);

Tailwind

colors: {
  custom: {
    50: '#7d91ce',
    500: '#3667b8',
    950: '#000000',
  },
}

SCSS

$custom: #3667b8;
$custom-light: #7d91ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3667b8",
  "rgb": {
    "r": 54,
    "g": 103,
    "b": 184
  },
  "hsl": {
    "h": 217.385,
    "s": 54.622,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52196,
    "c": 0.13854,
    "h": 259.9
  },
  "luminance": 0.13945
}

Semantic roles & 50–950 ramp

primary

#3667B8

secondary

#C7AD82

accent

#A64ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3667B8

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

Preview Lab → · Contrast checker → · Palette generator →