#3761B7#3761B7

#3761B7 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 50.9% C 0.144 H 262.8°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#3761B7
RGB	rgb(55, 97, 183)
HSL	hsl(220, 54%, 47%)
HSV	hsv(220, 70%, 72%)
CMYK	cmyk(69.9%, 47%, 0%, 28.2%)
CIE-LAB	lab(42.43, 14.67, -49.87)
CIE-LCH	lch(42.43, 51.98, 286.39°)
OKLab	oklab(50.86% -0.0181 -0.1429)
OKLCH	oklch(50.86% 0.144 262.8)
XYZ	xyz(14.3945, 12.7790, 46.4986)
Luminance	0.1278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3761B7 #B78D37

analogous

#37A1B7 #3761B7 #4D37B7

triadic

#3761B7 #B73761 #61B737

tetradic

#3761B7 #B737A1 #B78D37 #37B74D

square

#3761B7 #B737A1 #B78D37 #37B74D

split-complementary

#3761B7 #B74D37 #A1B737

monochromatic

#1B2F59 #294888 #3761B7 #5D82CE #8CA6DC

Accessibility & contrast

On white

5.91

#3761B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#3761B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3761B7

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3761B7	#FFFFFF	#000000	##FFFFFF
##3761B7	1.00	5.91	3.56	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#346ABA

Deuteranopia (green-blind)

#185FB5

Tritanopia (blue-blind)

#007583

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3761b7;
/* rgb */ color: rgb(55, 97, 183);
/* oklch */ color: oklch(50.9% 0.144 262.8);

Tailwind

colors: {
  custom: {
    50: '#7d8dcd',
    500: '#3761b7',
    950: '#000000',
  },
}

SCSS

$custom: #3761b7;
$custom-light: #7d8dcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3761b7",
  "rgb": {
    "r": 55,
    "g": 97,
    "b": 183
  },
  "hsl": {
    "h": 220.313,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.50861,
    "c": 0.14403,
    "h": 262.8
  },
  "luminance": 0.12781
}

Semantic roles & 50–950 ramp

primary

#3761B7

secondary

#C7B183

accent

#AD4BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3761B7

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

Preview Lab → · Contrast checker → · Palette generator →