#537EC8#537EC8

#537EC8 is a mid, vivid blue. Relative luminance 0.209; OKLCH L 59.6% C 0.123 H 260.6°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#537EC8
RGB	rgb(83, 126, 200)
HSL	hsl(218, 52%, 55%)
HSV	hsv(218, 59%, 78%)
CMYK	cmyk(58.5%, 37%, 0%, 21.6%)
CIE-LAB	lab(52.87, 7.55, -42.95)
CIE-LCH	lch(52.87, 43.61, 279.97°)
OKLab	oklab(59.6% -0.02 -0.1217)
OKLCH	oklch(59.6% 0.123 260.6)
XYZ	xyz(21.4498, 20.9290, 57.5417)
Luminance	0.2093 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537EC8 #C89D53

analogous

#53B8C8 #537EC8 #6253C8

triadic

#537EC8 #C8537E #7EC853

tetradic

#537EC8 #C853B8 #C89D53 #53C862

square

#537EC8 #C853B8 #C89D53 #53C862

split-complementary

#537EC8 #C86253 #B8C853

monochromatic

#27457A #3660A8 #537EC8 #81A1D7 #B0C4E6

Accessibility & contrast

On white

4.05

#537EC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#537EC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537EC8

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537EC8	#FFFFFF	#000000	##000000
##537EC8	1.00	4.05	5.19	5.19
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F84CB

Deuteranopia (green-blind)

#5079C6

Tritanopia (blue-blind)

#008F99

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537ec8;
/* rgb */ color: rgb(83, 126, 200);
/* oklch */ color: oklch(59.6% 0.123 260.6);

Tailwind

colors: {
  custom: {
    50: '#8ca3d9',
    500: '#537ec8',
    950: '#000000',
  },
}

SCSS

$custom: #537ec8;
$custom-light: #8ca3d9;
$custom-dark: #000000;

JSON

{
  "hex": "#537ec8",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 200
  },
  "hsl": {
    "h": 217.949,
    "s": 51.542,
    "l": 55.49
  },
  "oklch": {
    "l": 0.59596,
    "c": 0.12335,
    "h": 260.6
  },
  "luminance": 0.20931
}

Semantic roles & 50–950 ramp

primary

#537EC8

secondary

#D4C2A3

accent

#A74DDB

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #537EC8

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

Preview Lab → · Contrast checker → · Palette generator →