#537DCB#537DCB

#537DCB is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.6% C 0.129 H 261.8°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#537DCB
RGB	rgb(83, 125, 203)
HSL	hsl(219, 54%, 56%)
HSV	hsv(219, 59%, 80%)
CMYK	cmyk(59.1%, 38.4%, 0%, 20.4%)
CIE-LAB	lab(52.75, 9.16, -44.86)
CIE-LCH	lch(52.75, 45.78, 281.54°)
OKLab	oklab(59.55% -0.0183 -0.1273)
OKLCH	oklch(59.55% 0.129 261.8)
XYZ	xyz(21.6767, 20.8162, 59.3639)
Luminance	0.2082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DCB #CBA153

analogous

#53B9CB #537DCB #6553CB

triadic

#537DCB #CB537D #7DCB53

tetradic

#537DCB #CB53B9 #CBA153 #53CB65

square

#537DCB #CB53B9 #CBA153 #53CB65

split-complementary

#537DCB #CB6553 #B9CB53

monochromatic

#26457E #345EAD #537DCB #82A1D9 #B1C4E7

Accessibility & contrast

On white

4.07

#537DCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#537DCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DCB

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DCB	#FFFFFF	#000000	##000000
##537DCB	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C84CE

Deuteranopia (green-blind)

#4C79C9

Tritanopia (blue-blind)

#008E9A

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537dcb;
/* rgb */ color: rgb(83, 125, 203);
/* oklch */ color: oklch(59.6% 0.129 261.8);

Tailwind

colors: {
  custom: {
    50: '#8da2db',
    500: '#537dcb',
    950: '#000000',
  },
}

SCSS

$custom: #537dcb;
$custom-light: #8da2db;
$custom-dark: #000000;

JSON

{
  "hex": "#537dcb",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 203
  },
  "hsl": {
    "h": 219,
    "s": 53.571,
    "l": 56.078
  },
  "oklch": {
    "l": 0.59551,
    "c": 0.12859,
    "h": 261.8
  },
  "luminance": 0.20818
}

Semantic roles & 50–950 ramp

primary

#537DCB

secondary

#D6C4A4

accent

#AA4BDD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #537DCB

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

Preview Lab → · Contrast checker → · Palette generator →