#537CB8#537CB8

#537CB8 is a mid, moderate blue. Relative luminance 0.197; OKLCH L 58.3% C 0.104 H 257.8°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#537CB8
RGB	rgb(83, 124, 184)
HSL	hsl(216, 42%, 52%)
HSV	hsv(216, 55%, 72%)
CMYK	cmyk(54.9%, 32.6%, 0%, 27.8%)
CIE-LAB	lab(51.51, 3.51, -35.94)
CIE-LCH	lch(51.51, 36.11, 275.58°)
OKLab	oklab(58.28% -0.0219 -0.1013)
OKLCH	oklch(58.28% 0.104 257.8)
XYZ	xyz(19.4237, 19.7135, 48.1196)
Luminance	0.1971 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CB8 #B88F53

analogous

#53AEB8 #537CB8 #5D53B8

triadic

#537CB8 #B8537C #7CB853

tetradic

#537CB8 #B853AE #B88F53 #53B85D

square

#537CB8 #B853AE #B88F53 #53B85D

split-complementary

#537CB8 #B85D53 #AEB853

monochromatic

#2A4366 #3C5F92 #537CB8 #7E9DCA #AABEDC

Accessibility & contrast

On white

4.25

#537CB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#537CB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CB8

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CB8	#FFFFFF	#000000	##000000
##537CB8	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6480BB

Deuteranopia (green-blind)

#5776B7

Tritanopia (blue-blind)

#158992

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #537cb8;
/* rgb */ color: rgb(83, 124, 184);
/* oklch */ color: oklch(58.3% 0.104 257.8);

Tailwind

colors: {
  custom: {
    50: '#8aa1cd',
    500: '#537cb8',
    950: '#000000',
  },
}

SCSS

$custom: #537cb8;
$custom-light: #8aa1cd;
$custom-dark: #000000;

JSON

{
  "hex": "#537cb8",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 184
  },
  "hsl": {
    "h": 215.644,
    "s": 41.564,
    "l": 52.353
  },
  "oklch": {
    "l": 0.58278,
    "c": 0.10364,
    "h": 257.8
  },
  "luminance": 0.19715
}

Semantic roles & 50–950 ramp

primary

#537CB8

secondary

#C9B89D

accent

#9F56D1

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #537CB8

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

Preview Lab → · Contrast checker → · Palette generator →