#537AC9#537AC9

#537AC9 is a mid, vivid blue. Relative luminance 0.200; OKLCH L 58.8% C 0.129 H 263.1°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#537AC9
RGB	rgb(83, 122, 201)
HSL	hsl(220, 52%, 56%)
HSV	hsv(220, 59%, 79%)
CMYK	cmyk(58.7%, 39.3%, 0%, 21.2%)
CIE-LAB	lab(51.81, 10.31, -45.21)
CIE-LCH	lch(51.81, 46.37, 282.85°)
OKLab	oklab(58.79% -0.0154 -0.1283)
OKLCH	oklch(58.79% 0.129 263.1)
XYZ	xyz(21.0658, 19.9734, 57.9921)
Luminance	0.1998 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537AC9 #C9A253

analogous

#53B5C9 #537AC9 #6753C9

triadic

#537AC9 #C9537A #7AC953

tetradic

#537AC9 #C953B5 #C9A253 #53C967

square

#537AC9 #C953B5 #C9A253 #53C967

split-complementary

#537AC9 #C96753 #B5C953

monochromatic

#27427B #355CAA #537AC9 #829ED8 #B0C2E6

Accessibility & contrast

On white

4.20

#537AC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#537AC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537AC9

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537AC9	#FFFFFF	#000000	##000000
##537AC9	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5881CC

Deuteranopia (green-blind)

#4976C7

Tritanopia (blue-blind)

#008C98

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #537ac9;
/* rgb */ color: rgb(83, 122, 201);
/* oklch */ color: oklch(58.8% 0.129 263.1);

Tailwind

colors: {
  custom: {
    50: '#8da0da',
    500: '#537ac9',
    950: '#000000',
  },
}

SCSS

$custom: #537ac9;
$custom-light: #8da0da;
$custom-dark: #000000;

JSON

{
  "hex": "#537ac9",
  "rgb": {
    "r": 83,
    "g": 122,
    "b": 201
  },
  "hsl": {
    "h": 220.169,
    "s": 52.212,
    "l": 55.686
  },
  "oklch": {
    "l": 0.58788,
    "c": 0.12928,
    "h": 263.1
  },
  "luminance": 0.19975
}

Semantic roles & 50–950 ramp

primary

#537AC9

secondary

#D4C4A3

accent

#AC4CDC

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #537AC9

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

Preview Lab → · Contrast checker → · Palette generator →