#537BDD#537BDD

#537BDD is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.2% C 0.156 H 265.3°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#537BDD
RGB	rgb(83, 123, 221)
HSL	hsl(223, 67%, 60%)
HSV	hsv(223, 62%, 87%)
CMYK	cmyk(62.4%, 44.3%, 0%, 13.3%)
CIE-LAB	lab(53.19, 16.45, -54.33)
CIE-LCH	lch(53.19, 56.76, 286.84°)
OKLab	oklab(60.22% -0.0127 -0.1551)
OKLCH	oklch(60.22% 0.156 265.3)
XYZ	xyz(23.6969, 21.2233, 71.2403)
Luminance	0.2122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BDD #DDB553

analogous

#53C0DD #537BDD #7053DD

triadic

#537BDD #DD537B #7BDD53

tetradic

#537BDD #DD53C0 #DDB553 #53DD70

square

#537BDD #DD53C0 #DDB553 #53DD70

split-complementary

#537BDD #DD7053 #C0DD53

monochromatic

#1E4198 #2857CB #537BDD #86A2E7 #B9C9F1

Accessibility & contrast

On white

4.00

#537BDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#537BDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BDD

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BDD	#FFFFFF	#000000	##000000
##537BDD	1.00	4.00	5.24	5.24
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D86E1

Deuteranopia (green-blind)

#3679DB

Tritanopia (blue-blind)

#0091A1

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537bdd;
/* rgb */ color: rgb(83, 123, 221);
/* oklch */ color: oklch(60.2% 0.156 265.3);

Tailwind

colors: {
  custom: {
    50: '#90a0e8',
    500: '#537bdd',
    950: '#000000',
  },
}

SCSS

$custom: #537bdd;
$custom-light: #90a0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#537bdd",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 221
  },
  "hsl": {
    "h": 222.609,
    "s": 66.99,
    "l": 59.608
  },
  "oklch": {
    "l": 0.60217,
    "c": 0.15561,
    "h": 265.3
  },
  "luminance": 0.21225
}

Semantic roles & 50–950 ramp

primary

#537BDD

secondary

#E1D1AB

accent

#B83EEA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #537BDD

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

Preview Lab → · Contrast checker → · Palette generator →