#537CC9#537CC9

#537CC9 is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.2% C 0.127 H 262.0°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#537CC9
RGB	rgb(83, 124, 201)
HSL	hsl(219, 52%, 56%)
HSV	hsv(219, 59%, 79%)
CMYK	cmyk(58.7%, 38.3%, 0%, 21.2%)
CIE-LAB	lab(52.36, 9.10, -44.33)
CIE-LCH	lch(52.36, 45.25, 281.60°)
OKLab	oklab(59.22% -0.0176 -0.1257)
OKLCH	oklch(59.22% 0.127 262)
XYZ	xyz(21.3139, 20.4696, 58.0748)
Luminance	0.2047 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CC9 #C9A053

analogous

#53B7C9 #537CC9 #6553C9

triadic

#537CC9 #C9537C #7CC953

tetradic

#537CC9 #C953B7 #C9A053 #53C965

square

#537CC9 #C953B7 #C9A053 #53C965

split-complementary

#537CC9 #C96553 #B7C953

monochromatic

#27447B #355EAA #537CC9 #829FD8 #B0C3E6

Accessibility & contrast

On white

4.12

#537CC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#537CC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CC9

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CC9	#FFFFFF	#000000	##000000
##537CC9	1.00	4.12	5.09	5.09
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B83CC

Deuteranopia (green-blind)

#4C78C7

Tritanopia (blue-blind)

#008D99

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #537cc9;
/* rgb */ color: rgb(83, 124, 201);
/* oklch */ color: oklch(59.2% 0.127 262.0);

Tailwind

colors: {
  custom: {
    50: '#8da1da',
    500: '#537cc9',
    950: '#000000',
  },
}

SCSS

$custom: #537cc9;
$custom-light: #8da1da;
$custom-dark: #000000;

JSON

{
  "hex": "#537cc9",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 201
  },
  "hsl": {
    "h": 219.153,
    "s": 52.212,
    "l": 55.686
  },
  "oklch": {
    "l": 0.59219,
    "c": 0.12698,
    "h": 262
  },
  "luminance": 0.20471
}

Semantic roles & 50–950 ramp

primary

#537CC9

secondary

#D4C3A3

accent

#AA4CDC

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #537CC9

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

Preview Lab → · Contrast checker → · Palette generator →