#3767BB#3767BB

#3767BB is a mid, vivid blue. Relative luminance 0.141; OKLCH L 52.4% C 0.142 H 260.7°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#3767BB
RGB	rgb(55, 103, 187)
HSL	hsl(218, 55%, 47%)
HSV	hsv(218, 71%, 73%)
CMYK	cmyk(70.6%, 44.9%, 0%, 26.7%)
CIE-LAB	lab(44.37, 12.30, -49.08)
CIE-LCH	lch(44.37, 50.60, 284.07°)
OKLab	oklab(52.44% -0.023 -0.1405)
OKLCH	oklch(52.44% 0.142 260.7)
XYZ	xyz(15.3922, 14.0990, 48.9143)
Luminance	0.1410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3767BB #BB8B37

analogous

#37A9BB #3767BB #4937BB

triadic

#3767BB #BB3767 #67BB37

tetradic

#3767BB #BB37A9 #BB8B37 #37BB49

square

#3767BB #BB37A9 #BB8B37 #37BB49

split-complementary

#3767BB #BB4937 #A9BB37

monochromatic

#1B335C #294D8C #3767BB #5F88D0 #8EABDE

Accessibility & contrast

On white

5.50

#3767BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#3767BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3767BB

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3767BB	#FFFFFF	#000000	##FFFFFF
##3767BB	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D6FBE

Deuteranopia (green-blind)

#2463B9

Tritanopia (blue-blind)

#007B88

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3767bb;
/* rgb */ color: rgb(55, 103, 187);
/* oklch */ color: oklch(52.4% 0.142 260.7);

Tailwind

colors: {
  custom: {
    50: '#7e91d0',
    500: '#3767bb',
    950: '#000000',
  },
}

SCSS

$custom: #3767bb;
$custom-light: #7e91d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3767bb",
  "rgb": {
    "r": 55,
    "g": 103,
    "b": 187
  },
  "hsl": {
    "h": 218.182,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.52437,
    "c": 0.14232,
    "h": 260.7
  },
  "luminance": 0.14101
}

Semantic roles & 50–950 ramp

primary

#3767BB

secondary

#C9B085

accent

#A84ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3767BB

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

Preview Lab → · Contrast checker → · Palette generator →