#537FC4#537FC4

#537FC4 is a mid, moderate blue. Relative luminance 0.210; OKLCH L 59.6% C 0.117 H 259.1°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#537FC4
RGB	rgb(83, 127, 196)
HSL	hsl(217, 49%, 55%)
HSV	hsv(217, 58%, 77%)
CMYK	cmyk(57.7%, 35.2%, 0%, 23.1%)
CIE-LAB	lab(52.95, 5.63, -40.55)
CIE-LCH	lch(52.95, 40.94, 277.90°)
OKLab	oklab(59.59% -0.0221 -0.1147)
OKLCH	oklch(59.59% 0.117 259.1)
XYZ	xyz(21.1170, 21.0015, 55.1547)
Luminance	0.2100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FC4 #C49853

analogous

#53B8C4 #537FC4 #5F53C4

triadic

#537FC4 #C4537F #7FC453

tetradic

#537FC4 #C453B8 #C49853 #53C45F

square

#537FC4 #C453B8 #C49853 #53C45F

split-complementary

#537FC4 #C45F53 #B8C453

monochromatic

#284675 #3861A2 #537FC4 #81A1D4 #AEC3E3

Accessibility & contrast

On white

4.04

#537FC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#537FC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FC4

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FC4	#FFFFFF	#000000	##000000
##537FC4	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6384C7

Deuteranopia (green-blind)

#547AC3

Tritanopia (blue-blind)

#008E98

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537fc4;
/* rgb */ color: rgb(83, 127, 196);
/* oklch */ color: oklch(59.6% 0.117 259.1);

Tailwind

colors: {
  custom: {
    50: '#8ca3d6',
    500: '#537fc4',
    950: '#000000',
  },
}

SCSS

$custom: #537fc4;
$custom-light: #8ca3d6;
$custom-dark: #000000;

JSON

{
  "hex": "#537fc4",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 196
  },
  "hsl": {
    "h": 216.637,
    "s": 48.918,
    "l": 54.706
  },
  "oklch": {
    "l": 0.59592,
    "c": 0.11681,
    "h": 259.1
  },
  "luminance": 0.21003
}

Semantic roles & 50–950 ramp

primary

#537FC4

secondary

#D1BFA2

accent

#A34FD8

background

#F9FAFD

surface

#F1F3FA

border

#CBCDD3

text

#0D0F14

muted

#7E7F83

Preview Lab

Preview with #537FC4

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

Preview Lab → · Contrast checker → · Palette generator →