#537AB7#537AB7

#537AB7 is a mid, moderate blue. Relative luminance 0.192; OKLCH L 57.8% C 0.104 H 259.1°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#537AB7
RGB	rgb(83, 122, 183)
HSL	hsl(217, 41%, 52%)
HSV	hsv(217, 55%, 72%)
CMYK	cmyk(54.6%, 33.3%, 0%, 28.2%)
CIE-LAB	lab(50.89, 4.39, -36.34)
CIE-LCH	lch(50.89, 36.60, 276.89°)
OKLab	oklab(57.78% -0.0198 -0.1025)
OKLCH	oklch(57.78% 0.104 259.1)
XYZ	xyz(19.0711, 19.1755, 47.4868)
Luminance	0.1918 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537AB7 #B79053

analogous

#53ACB7 #537AB7 #5E53B7

triadic

#537AB7 #B7537A #7AB753

tetradic

#537AB7 #B753AC #B79053 #53B75E

square

#537AB7 #B753AC #B79053 #53B75E

split-complementary

#537AB7 #B75E53 #ACB753

monochromatic

#2A4165 #3C5D90 #537AB7 #7E9BC9 #A9BDDB

Accessibility & contrast

On white

4.34

#537AB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#537AB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537AB7

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537AB7	#FFFFFF	#000000	##000000
##537AB7	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#627EBA

Deuteranopia (green-blind)

#5575B6

Tritanopia (blue-blind)

#188890

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #537ab7;
/* rgb */ color: rgb(83, 122, 183);
/* oklch */ color: oklch(57.8% 0.104 259.1);

Tailwind

colors: {
  custom: {
    50: '#8aa0cd',
    500: '#537ab7',
    950: '#000000',
  },
}

SCSS

$custom: #537ab7;
$custom-light: #8aa0cd;
$custom-dark: #000000;

JSON

{
  "hex": "#537ab7",
  "rgb": {
    "r": 83,
    "g": 122,
    "b": 183
  },
  "hsl": {
    "h": 216.6,
    "s": 40.984,
    "l": 52.157
  },
  "oklch": {
    "l": 0.57778,
    "c": 0.10437,
    "h": 259.1
  },
  "luminance": 0.19177
}

Semantic roles & 50–950 ramp

primary

#537AB7

secondary

#C9B89D

accent

#A157D1

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #537AB7

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

Preview Lab → · Contrast checker → · Palette generator →