#5371BC#5371BC

#5371BC is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.1% C 0.122 H 266.1°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#5371BC
RGB	rgb(83, 113, 188)
HSL	hsl(223, 44%, 53%)
HSV	hsv(223, 56%, 74%)
CMYK	cmyk(55.9%, 39.9%, 0%, 26.3%)
CIE-LAB	lab(48.61, 11.52, -42.83)
CIE-LCH	lch(48.61, 44.35, 285.06°)
OKLab	oklab(56.09% -0.0082 -0.1215)
OKLCH	oklch(56.09% 0.122 266.1)
XYZ	xyz(18.5465, 17.2787, 49.9250)
Luminance	0.1728 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5371BC #BC9E53

analogous

#53A5BC #5371BC #6953BC

triadic

#5371BC #BC5371 #71BC53

tetradic

#5371BC #BC53A5 #BC9E53 #53BC69

square

#5371BC #BC53A5 #BC9E53 #53BC69

split-complementary

#5371BC #BC6953 #A5BC53

monochromatic

#2A3C6B #3B5597 #5371BC #7F95CD #ABBADE

Accessibility & contrast

On white

4.71

#5371BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#5371BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5371BC

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5371BC	#FFFFFF	#000000	##FFFFFF
##5371BC	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5279BF

Deuteranopia (green-blind)

#456FBA

Tritanopia (blue-blind)

#12818D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #5371bc;
/* rgb */ color: rgb(83, 113, 188);
/* oklch */ color: oklch(56.1% 0.122 266.1);

Tailwind

colors: {
  custom: {
    50: '#8b99d0',
    500: '#5371bc',
    950: '#000000',
  },
}

SCSS

$custom: #5371bc;
$custom-light: #8b99d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5371bc",
  "rgb": {
    "r": 83,
    "g": 113,
    "b": 188
  },
  "hsl": {
    "h": 222.857,
    "s": 43.933,
    "l": 53.137
  },
  "oklch": {
    "l": 0.56091,
    "c": 0.12175,
    "h": 266.1
  },
  "luminance": 0.1728
}

Semantic roles & 50–950 ramp

primary

#5371BC

secondary

#CCBF9F

accent

#AF54D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #5371BC

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

Preview Lab → · Contrast checker → · Palette generator →