#5371BF#5371BF

#5371BF is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.3% C 0.126 H 266.5°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#5371BF
RGB	rgb(83, 113, 191)
HSL	hsl(223, 46%, 54%)
HSV	hsv(223, 57%, 75%)
CMYK	cmyk(56.5%, 40.8%, 0%, 25.1%)
CIE-LAB	lab(48.77, 12.51, -44.30)
CIE-LCH	lch(48.77, 46.03, 285.77°)
OKLab	oklab(56.27% -0.0076 -0.1258)
OKLCH	oklch(56.27% 0.126 266.5)
XYZ	xyz(18.8732, 17.4094, 51.6459)
Luminance	0.1741 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5371BF #BFA153

analogous

#53A7BF #5371BF #6B53BF

triadic

#5371BF #BF5371 #71BF53

tetradic

#5371BF #BF53A7 #BFA153 #53BF6B

square

#5371BF #BF53A7 #BFA153 #53BF6B

split-complementary

#5371BF #BF6B53 #A7BF53

monochromatic

#293C6E #3A559B #5371BF #8096D0 #ACBBE0

Accessibility & contrast

On white

4.69

#5371BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#5371BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5371BF

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5371BF	#FFFFFF	#000000	##FFFFFF
##5371BF	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5079C2

Deuteranopia (green-blind)

#426FBD

Tritanopia (blue-blind)

#09828F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #5371bf;
/* rgb */ color: rgb(83, 113, 191);
/* oklch */ color: oklch(56.3% 0.126 266.5);

Tailwind

colors: {
  custom: {
    50: '#8b99d3',
    500: '#5371bf',
    950: '#000000',
  },
}

SCSS

$custom: #5371bf;
$custom-light: #8b99d3;
$custom-dark: #000000;

JSON

{
  "hex": "#5371bf",
  "rgb": {
    "r": 83,
    "g": 113,
    "b": 191
  },
  "hsl": {
    "h": 223.333,
    "s": 45.763,
    "l": 53.725
  },
  "oklch": {
    "l": 0.5627,
    "c": 0.12601,
    "h": 266.5
  },
  "luminance": 0.17411
}

Semantic roles & 50–950 ramp

primary

#5371BF

secondary

#CEC1A0

accent

#B152D5

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0D0D14

muted

#7D7E83

Preview Lab

Preview with #5371BF

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

Preview Lab → · Contrast checker → · Palette generator →