#3763B1#3763B1

#3763B1 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 50.9% C 0.133 H 260.9°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#3763B1
RGB	rgb(55, 99, 177)
HSL	hsl(218, 53%, 45%)
HSV	hsv(218, 69%, 69%)
CMYK	cmyk(68.9%, 44.1%, 0%, 30.6%)
CIE-LAB	lab(42.63, 11.18, -46.04)
CIE-LCH	lch(42.63, 47.38, 283.64°)
OKLab	oklab(50.89% -0.021 -0.1316)
OKLCH	oklch(50.89% 0.133 260.9)
XYZ	xyz(13.9704, 12.9088, 43.3418)
Luminance	0.1291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3763B1 #B18537

analogous

#37A0B1 #3763B1 #4837B1

triadic

#3763B1 #B13763 #63B137

tetradic

#3763B1 #B137A0 #B18537 #37B148

square

#3763B1 #B137A0 #B18537 #37B148

split-complementary

#3763B1 #B14837 #A0B137

monochromatic

#1A2F54 #284982 #3763B1 #5A83CC #88A6DA

Accessibility & contrast

On white

5.86

#3763B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#3763B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3763B1

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3763B1	#FFFFFF	#000000	##FFFFFF
##3763B1	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D6BB4

Deuteranopia (green-blind)

#285FAF

Tritanopia (blue-blind)

#007581

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3763b1;
/* rgb */ color: rgb(55, 99, 177);
/* oklch */ color: oklch(50.9% 0.133 260.9);

Tailwind

colors: {
  custom: {
    50: '#7c8ec9',
    500: '#3763b1',
    950: '#000000',
  },
}

SCSS

$custom: #3763b1;
$custom-light: #7c8ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#3763b1",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 177
  },
  "hsl": {
    "h": 218.361,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.50893,
    "c": 0.13327,
    "h": 260.9
  },
  "luminance": 0.1291
}

Semantic roles & 50–950 ramp

primary

#3763B1

secondary

#C4AB80

accent

#A84CDC

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3763B1

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

Preview Lab → · Contrast checker → · Palette generator →