#5370BD#5370BD

#5370BD is a mid, vivid blue. Relative luminance 0.171; OKLCH L 55.9% C 0.124 H 266.8°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#5370BD
RGB	rgb(83, 112, 189)
HSL	hsl(224, 45%, 53%)
HSV	hsv(224, 56%, 74%)
CMYK	cmyk(56.1%, 40.7%, 0%, 25.9%)
CIE-LAB	lab(48.39, 12.47, -43.76)
CIE-LCH	lch(48.39, 45.50, 285.90°)
OKLab	oklab(55.94% -0.0069 -0.1242)
OKLCH	oklch(55.94% 0.124 266.8)
XYZ	xyz(18.5437, 17.1000, 50.4577)
Luminance	0.1710 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5370BD #BDA053

analogous

#53A5BD #5370BD #6B53BD

triadic

#5370BD #BD5370 #70BD53

tetradic

#5370BD #BD53A5 #BDA053 #53BD6B

square

#5370BD #BD53A5 #BDA053 #53BD6B

split-complementary

#5370BD #BD6B53 #A5BD53

monochromatic

#293C6C #3A5498 #5370BD #7F95CE #ABBADF

Accessibility & contrast

On white

4.75

#5370BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#5370BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5370BD

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5370BD	#FFFFFF	#000000	##FFFFFF
##5370BD	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5078C0

Deuteranopia (green-blind)

#426EBB

Tritanopia (blue-blind)

#10818D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #5370bd;
/* rgb */ color: rgb(83, 112, 189);
/* oklch */ color: oklch(55.9% 0.124 266.8);

Tailwind

colors: {
  custom: {
    50: '#8b98d1',
    500: '#5370bd',
    950: '#000000',
  },
}

SCSS

$custom: #5370bd;
$custom-light: #8b98d1;
$custom-dark: #000000;

JSON

{
  "hex": "#5370bd",
  "rgb": {
    "r": 83,
    "g": 112,
    "b": 189
  },
  "hsl": {
    "h": 223.585,
    "s": 44.538,
    "l": 53.333
  },
  "oklch": {
    "l": 0.55937,
    "c": 0.1244,
    "h": 266.8
  },
  "luminance": 0.17101
}

Semantic roles & 50–950 ramp

primary

#5370BD

secondary

#CDC09F

accent

#B154D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0D0D14

muted

#7D7E82

Preview Lab

Preview with #5370BD

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

Preview Lab → · Contrast checker → · Palette generator →