#3667B6#3667B6

#3667B6 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.1% C 0.136 H 259.5°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#3667B6
RGB	rgb(54, 103, 182)
HSL	hsl(217, 54%, 46%)
HSV	hsv(217, 70%, 71%)
CMYK	cmyk(70.3%, 43.4%, 0%, 28.6%)
CIE-LAB	lab(44.03, 10.31, -46.72)
CIE-LCH	lch(44.03, 47.84, 282.44°)
OKLab	oklab(52.07% -0.0247 -0.1335)
OKLCH	oklch(52.07% 0.136 259.5)
XYZ	xyz(14.8120, 13.8606, 46.1416)
Luminance	0.1386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3667B6 #B68536

analogous

#36A7B6 #3667B6 #4536B6

triadic

#3667B6 #B63667 #67B636

tetradic

#3667B6 #B636A7 #B68536 #36B645

square

#3667B6 #B636A7 #B68536 #36B645

split-complementary

#3667B6 #B64536 #A7B636

monochromatic

#1A3258 #284C87 #3667B6 #5B87CE #8AAADC

Accessibility & contrast

On white

5.57

#3667B6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#3667B6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3667B6

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3667B6	#FFFFFF	#000000	##FFFFFF
##3667B6	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#416EB9

Deuteranopia (green-blind)

#2A63B4

Tritanopia (blue-blind)

#007985

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3667b6;
/* rgb */ color: rgb(54, 103, 182);
/* oklch */ color: oklch(52.1% 0.136 259.5);

Tailwind

colors: {
  custom: {
    50: '#7c91cc',
    500: '#3667b6',
    950: '#000000',
  },
}

SCSS

$custom: #3667b6;
$custom-light: #7c91cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3667b6",
  "rgb": {
    "r": 54,
    "g": 103,
    "b": 182
  },
  "hsl": {
    "h": 217.031,
    "s": 54.237,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52065,
    "c": 0.1358,
    "h": 259.5
  },
  "luminance": 0.13862
}

Semantic roles & 50–950 ramp

primary

#3667B6

secondary

#C6AC81

accent

#A54ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3667B6

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

Preview Lab → · Contrast checker → · Palette generator →