#537CB7#537CB7

#537CB7 is a mid, moderate blue. Relative luminance 0.197; OKLCH L 58.2% C 0.102 H 257.5°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#537CB7
RGB	rgb(83, 124, 183)
HSL	hsl(215, 41%, 52%)
HSV	hsv(215, 55%, 72%)
CMYK	cmyk(54.6%, 32.2%, 0%, 28.2%)
CIE-LAB	lab(51.46, 3.19, -35.44)
CIE-LCH	lch(51.46, 35.58, 275.14°)
OKLab	oklab(58.23% -0.0222 -0.0998)
OKLCH	oklch(58.23% 0.102 257.5)
XYZ	xyz(19.3192, 19.6717, 47.5695)
Luminance	0.1967 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CB7 #B78E53

analogous

#53AEB7 #537CB7 #5C53B7

triadic

#537CB7 #B7537C #7CB753

tetradic

#537CB7 #B753AE #B78E53 #53B75C

square

#537CB7 #B753AE #B78E53 #53B75C

split-complementary

#537CB7 #B75C53 #AEB753

monochromatic

#2A4365 #3C5F90 #537CB7 #7E9DC9 #A9BEDB

Accessibility & contrast

On white

4.26

#537CB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#537CB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CB7

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CB7	#FFFFFF	#000000	##000000
##537CB7	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6480BA

Deuteranopia (green-blind)

#5876B6

Tritanopia (blue-blind)

#178991

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #537cb7;
/* rgb */ color: rgb(83, 124, 183);
/* oklch */ color: oklch(58.2% 0.102 257.5);

Tailwind

colors: {
  custom: {
    50: '#8aa1cd',
    500: '#537cb7',
    950: '#000000',
  },
}

SCSS

$custom: #537cb7;
$custom-light: #8aa1cd;
$custom-dark: #000000;

JSON

{
  "hex": "#537cb7",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 183
  },
  "hsl": {
    "h": 215.4,
    "s": 40.984,
    "l": 52.157
  },
  "oklch": {
    "l": 0.58225,
    "c": 0.10227,
    "h": 257.5
  },
  "luminance": 0.19673
}

Semantic roles & 50–950 ramp

primary

#537CB7

secondary

#C9B79D

accent

#9F57D1

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #537CB7

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

Preview Lab → · Contrast checker → · Palette generator →