#537AC7#537AC7

#537AC7 is a mid, vivid blue. Relative luminance 0.199; OKLCH L 58.7% C 0.127 H 262.8°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#537AC7
RGB	rgb(83, 122, 199)
HSL	hsl(220, 51%, 55%)
HSV	hsv(220, 58%, 78%)
CMYK	cmyk(58.3%, 38.7%, 0%, 22%)
CIE-LAB	lab(51.70, 9.65, -44.24)
CIE-LCH	lch(51.70, 45.28, 282.30°)
OKLab	oklab(58.67% -0.0159 -0.1255)
OKLCH	oklch(58.67% 0.127 262.8)
XYZ	xyz(20.8321, 19.8799, 56.7612)
Luminance	0.1988 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537AC7 #C7A053

analogous

#53B4C7 #537AC7 #6653C7

triadic

#537AC7 #C7537A #7AC753

tetradic

#537AC7 #C753B4 #C7A053 #53C766

square

#537AC7 #C753B4 #C7A053 #53C766

split-complementary

#537AC7 #C76653 #B4C753

monochromatic

#274278 #365CA7 #537AC7 #819ED6 #AFC1E5

Accessibility & contrast

On white

4.22

#537AC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#537AC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537AC7

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537AC7	#FFFFFF	#000000	##000000
##537AC7	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5981CA

Deuteranopia (green-blind)

#4A76C5

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #537ac7;
/* rgb */ color: rgb(83, 122, 199);
/* oklch */ color: oklch(58.7% 0.127 262.8);

Tailwind

colors: {
  custom: {
    50: '#8ca0d8',
    500: '#537ac7',
    950: '#000000',
  },
}

SCSS

$custom: #537ac7;
$custom-light: #8ca0d8;
$custom-dark: #000000;

JSON

{
  "hex": "#537ac7",
  "rgb": {
    "r": 83,
    "g": 122,
    "b": 199
  },
  "hsl": {
    "h": 219.828,
    "s": 50.877,
    "l": 55.294
  },
  "oklch": {
    "l": 0.58672,
    "c": 0.12651,
    "h": 262.8
  },
  "luminance": 0.19882
}

Semantic roles & 50–950 ramp

primary

#537AC7

secondary

#D3C3A3

accent

#AB4DDA

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #537AC7

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

Preview Lab → · Contrast checker → · Palette generator →