#537FC3#537FC3

#537FC3 is a mid, moderate blue. Relative luminance 0.210; OKLCH L 59.5% C 0.115 H 258.8°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#537FC3
RGB	rgb(83, 127, 195)
HSL	hsl(216, 48%, 55%)
HSV	hsv(216, 57%, 76%)
CMYK	cmyk(57.4%, 34.9%, 0%, 23.5%)
CIE-LAB	lab(52.90, 5.30, -40.06)
CIE-LCH	lch(52.90, 40.41, 277.54°)
OKLab	oklab(59.54% -0.0224 -0.1132)
OKLCH	oklch(59.54% 0.115 258.8)
XYZ	xyz(21.0035, 20.9561, 54.5573)
Luminance	0.2096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FC3 #C39753

analogous

#53B7C3 #537FC3 #5F53C3

triadic

#537FC3 #C3537F #7FC353

tetradic

#537FC3 #C353B7 #C39753 #53C35F

square

#537FC3 #C353B7 #C39753 #53C35F

split-complementary

#537FC3 #C35F53 #B7C353

monochromatic

#284673 #3861A1 #537FC3 #80A1D3 #AEC3E3

Accessibility & contrast

On white

4.04

#537FC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#537FC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FC3

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FC3	#FFFFFF	#000000	##000000
##537FC3	1.00	4.04	5.19	5.19
#FFFFFF	4.04	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)

#6384C6

Deuteranopia (green-blind)

#5579C2

Tritanopia (blue-blind)

#008E98

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537fc3;
/* rgb */ color: rgb(83, 127, 195);
/* oklch */ color: oklch(59.5% 0.115 258.8);

Tailwind

colors: {
  custom: {
    50: '#8ca3d5',
    500: '#537fc3',
    950: '#000000',
  },
}

SCSS

$custom: #537fc3;
$custom-light: #8ca3d5;
$custom-dark: #000000;

JSON

{
  "hex": "#537fc3",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 195
  },
  "hsl": {
    "h": 216.429,
    "s": 48.276,
    "l": 54.51
  },
  "oklch": {
    "l": 0.59537,
    "c": 0.11544,
    "h": 258.8
  },
  "luminance": 0.20958
}

Semantic roles & 50–950 ramp

primary

#537FC3

secondary

#D1BEA1

accent

#A250D8

background

#F9FAFD

surface

#F1F3FA

border

#CBCDD3

text

#0D0F14

muted

#7E7F83

Preview Lab

Preview with #537FC3

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

Preview Lab → · Contrast checker → · Palette generator →