#537FCC#537FCC

#537FCC is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.0% C 0.128 H 260.9°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#537FCC
RGB	rgb(83, 127, 204)
HSL	hsl(218, 54%, 56%)
HSV	hsv(218, 59%, 80%)
CMYK	cmyk(59.3%, 37.7%, 0%, 20%)
CIE-LAB	lab(53.36, 8.28, -44.46)
CIE-LCH	lch(53.36, 45.22, 280.55°)
OKLab	oklab(60.04% -0.0202 -0.1261)
OKLCH	oklch(60.04% 0.128 260.9)
XYZ	xyz(22.0519, 21.3755, 60.0788)
Luminance	0.2138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FCC #CCA053

analogous

#53BCCC #537FCC #6453CC

triadic

#537FCC #CC537F #7FCC53

tetradic

#537FCC #CC53BC #CCA053 #53CC64

square

#537FCC #CC53BC #CCA053 #53CC64

split-complementary

#537FCC #CC6453 #BCCC53

monochromatic

#26467F #3460AE #537FCC #82A2DA #B1C5E8

Accessibility & contrast

On white

3.98

#537FCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#537FCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FCC

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FCC	#FFFFFF	#000000	##000000
##537FCC	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E86CF

Deuteranopia (green-blind)

#4E7ACA

Tritanopia (blue-blind)

#00909C

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537fcc;
/* rgb */ color: rgb(83, 127, 204);
/* oklch */ color: oklch(60.0% 0.128 260.9);

Tailwind

colors: {
  custom: {
    50: '#8da3dc',
    500: '#537fcc',
    950: '#000000',
  },
}

SCSS

$custom: #537fcc;
$custom-light: #8da3dc;
$custom-dark: #000000;

JSON

{
  "hex": "#537fcc",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 204
  },
  "hsl": {
    "h": 218.182,
    "s": 54.26,
    "l": 56.275
  },
  "oklch": {
    "l": 0.60041,
    "c": 0.12771,
    "h": 260.9
  },
  "luminance": 0.21377
}

Semantic roles & 50–950 ramp

primary

#537FCC

secondary

#D6C4A4

accent

#A84ADE

background

#F9FAFD

surface

#F1F3FB

border

#CBCDD4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #537FCC

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

Preview Lab → · Contrast checker → · Palette generator →