#537DBC#537DBC

#537DBC is a mid, moderate blue. Relative luminance 0.201; OKLCH L 58.7% C 0.108 H 258.3°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#537DBC
RGB	rgb(83, 125, 188)
HSL	hsl(216, 44%, 53%)
HSV	hsv(216, 56%, 74%)
CMYK	cmyk(55.9%, 33.5%, 0%, 26.3%)
CIE-LAB	lab(51.99, 4.21, -37.49)
CIE-LCH	lch(51.99, 37.72, 276.41°)
OKLab	oklab(58.71% -0.0219 -0.1058)
OKLCH	oklch(58.71% 0.108 258.3)
XYZ	xyz(19.9748, 20.1355, 50.4011)
Luminance	0.2014 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DBC #BC9253

analogous

#53B1BC #537DBC #5D53BC

triadic

#537DBC #BC537D #7DBC53

tetradic

#537DBC #BC53B1 #BC9253 #53BC5D

square

#537DBC #BC53B1 #BC9253 #53BC5D

split-complementary

#537DBC #BC5D53 #B1BC53

monochromatic

#2A446B #3B6097 #537DBC #7F9ECD #ABC0DE

Accessibility & contrast

On white

4.18

#537DBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#537DBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DBC

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DBC	#FFFFFF	#000000	##000000
##537DBC	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6381BF

Deuteranopia (green-blind)

#5677BB

Tritanopia (blue-blind)

#0A8B94

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #537dbc;
/* rgb */ color: rgb(83, 125, 188);
/* oklch */ color: oklch(58.7% 0.108 258.3);

Tailwind

colors: {
  custom: {
    50: '#8ba2d0',
    500: '#537dbc',
    950: '#000000',
  },
}

SCSS

$custom: #537dbc;
$custom-light: #8ba2d0;
$custom-dark: #000000;

JSON

{
  "hex": "#537dbc",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 188
  },
  "hsl": {
    "h": 216,
    "s": 43.933,
    "l": 53.137
  },
  "oklch": {
    "l": 0.58714,
    "c": 0.10803,
    "h": 258.3
  },
  "luminance": 0.20137
}

Semantic roles & 50–950 ramp

primary

#537DBC

secondary

#CCBA9F

accent

#A154D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0F14

muted

#7D7E82

Preview Lab

Preview with #537DBC

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

Preview Lab → · Contrast checker → · Palette generator →