#537FDC#537FDC

#537FDC is a mid, vivid blue. Relative luminance 0.222; OKLCH L 61.0% C 0.150 H 263.5°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#537FDC
RGB	rgb(83, 127, 220)
HSL	hsl(221, 66%, 59%)
HSV	hsv(221, 62%, 86%)
CMYK	cmyk(62.3%, 42.3%, 0%, 13.7%)
CIE-LAB	lab(54.22, 13.66, -52.13)
CIE-LCH	lch(54.22, 53.89, 284.69°)
OKLab	oklab(60.99% -0.0169 -0.1486)
OKLCH	oklch(60.99% 0.15 263.5)
XYZ	xyz(24.0704, 22.1829, 70.7095)
Luminance	0.2218 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FDC #DCB053

analogous

#53C4DC #537FDC #6C53DC

triadic

#537FDC #DC537F #7FDC53

tetradic

#537FDC #DC53C4 #DCB053 #53DC6C

square

#537FDC #DC53C4 #DCB053 #53DC6C

split-complementary

#537FDC #DC6C53 #C4DC53

monochromatic

#1F4596 #295CC9 #537FDC #86A5E6 #B9CBF1

Accessibility & contrast

On white

3.86

#537FDC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#537FDC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FDC

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FDC	#FFFFFF	#000000	##000000
##537FDC	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5588E0

Deuteranopia (green-blind)

#407CDA

Tritanopia (blue-blind)

#0094A3

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #537fdc;
/* rgb */ color: rgb(83, 127, 220);
/* oklch */ color: oklch(61.0% 0.150 263.5);

Tailwind

colors: {
  custom: {
    50: '#8fa3e7',
    500: '#537fdc',
    950: '#000000',
  },
}

SCSS

$custom: #537fdc;
$custom-light: #8fa3e7;
$custom-dark: #000000;

JSON

{
  "hex": "#537fdc",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 220
  },
  "hsl": {
    "h": 220.73,
    "s": 66.184,
    "l": 59.412
  },
  "oklch": {
    "l": 0.60988,
    "c": 0.14952,
    "h": 263.5
  },
  "luminance": 0.22185
}

Semantic roles & 50–950 ramp

primary

#537FDC

secondary

#E0CFAB

accent

#B23FE9

background

#F9FAFE

surface

#F2F3FC

border

#CCCDD5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #537FDC

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

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