#537ECA#537ECA

#537ECA is a mid, vivid blue. Relative luminance 0.210; OKLCH L 59.7% C 0.126 H 261.1°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#537ECA
RGB	rgb(83, 126, 202)
HSL	hsl(218, 53%, 56%)
HSV	hsv(218, 59%, 79%)
CMYK	cmyk(58.9%, 37.6%, 0%, 20.8%)
CIE-LAB	lab(52.97, 8.22, -43.93)
CIE-LCH	lch(52.97, 44.69, 280.60°)
OKLab	oklab(59.71% -0.0196 -0.1246)
OKLCH	oklch(59.71% 0.126 261.1)
XYZ	xyz(21.6851, 21.0231, 58.7808)
Luminance	0.2102 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537ECA #CA9F53

analogous

#53BACA #537ECA #6353CA

triadic

#537ECA #CA537E #7ECA53

tetradic

#537ECA #CA53BA #CA9F53 #53CA63

square

#537ECA #CA53BA #CA9F53 #53CA63

split-complementary

#537ECA #CA6353 #BACA53

monochromatic

#26457C #355FAB #537ECA #82A1D8 #B1C4E7

Accessibility & contrast

On white

4.03

#537ECA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#537ECA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537ECA

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537ECA	#FFFFFF	#000000	##000000
##537ECA	1.00	4.03	5.20	5.20
#FFFFFF	4.03	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)

#5E84CD

Deuteranopia (green-blind)

#4E79C8

Tritanopia (blue-blind)

#008F9A

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537eca;
/* rgb */ color: rgb(83, 126, 202);
/* oklch */ color: oklch(59.7% 0.126 261.1);

Tailwind

colors: {
  custom: {
    50: '#8da3da',
    500: '#537eca',
    950: '#000000',
  },
}

SCSS

$custom: #537eca;
$custom-light: #8da3da;
$custom-dark: #000000;

JSON

{
  "hex": "#537eca",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 202
  },
  "hsl": {
    "h": 218.319,
    "s": 52.889,
    "l": 55.882
  },
  "oklch": {
    "l": 0.5971,
    "c": 0.12609,
    "h": 261.1
  },
  "luminance": 0.21025
}

Semantic roles & 50–950 ramp

primary

#537ECA

secondary

#D5C3A4

accent

#A84CDC

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #537ECA

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

Preview Lab → · Contrast checker → · Palette generator →