#537DDA#537DDA

#537DDA is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.4% C 0.149 H 264.1°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#537DDA
RGB	rgb(83, 125, 218)
HSL	hsl(221, 65%, 59%)
HSV	hsv(221, 62%, 85%)
CMYK	cmyk(61.9%, 42.7%, 0%, 14.5%)
CIE-LAB	lab(53.56, 14.21, -52.05)
CIE-LCH	lch(53.56, 53.95, 285.27°)
OKLab	oklab(60.45% -0.0152 -0.1484)
OKLCH	oklch(60.45% 0.149 264.1)
XYZ	xyz(23.5514, 21.5661, 69.2376)
Luminance	0.2157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DDA #DAB053

analogous

#53C1DA #537DDA #6D53DA

triadic

#537DDA #DA537D #7DDA53

tetradic

#537DDA #DA53C1 #DAB053 #53DA6D

square

#537DDA #DA53C1 #DAB053 #53DA6D

split-complementary

#537DDA #DA6D53 #C1DA53

monochromatic

#204493 #2A5BC5 #537DDA #85A3E5 #B8C9F0

Accessibility & contrast

On white

3.95

#537DDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#537DDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DDA

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DDA	#FFFFFF	#000000	##000000
##537DDA	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5287DE

Deuteranopia (green-blind)

#3E7AD8

Tritanopia (blue-blind)

#0092A1

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #537dda;
/* rgb */ color: rgb(83, 125, 218);
/* oklch */ color: oklch(60.4% 0.149 264.1);

Tailwind

colors: {
  custom: {
    50: '#8fa2e6',
    500: '#537dda',
    950: '#000000',
  },
}

SCSS

$custom: #537dda;
$custom-light: #8fa2e6;
$custom-dark: #000000;

JSON

{
  "hex": "#537dda",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 218
  },
  "hsl": {
    "h": 221.333,
    "s": 64.593,
    "l": 59.02
  },
  "oklch": {
    "l": 0.60446,
    "c": 0.14915,
    "h": 264.1
  },
  "luminance": 0.21568
}

Semantic roles & 50–950 ramp

primary

#537DDA

secondary

#DFCEAA

accent

#B440E8

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0F16

muted

#7E7E84

Preview Lab

Preview with #537DDA

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

Preview Lab → · Contrast checker → · Palette generator →