#537CDD#537CDD

#537CDD is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.4% C 0.154 H 264.9°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#537CDD
RGB	rgb(83, 124, 221)
HSL	hsl(222, 67%, 60%)
HSV	hsv(222, 62%, 87%)
CMYK	cmyk(62.4%, 43.9%, 0%, 13.3%)
CIE-LAB	lab(53.46, 15.84, -53.90)
CIE-LCH	lch(53.46, 56.18, 286.37°)
OKLab	oklab(60.42% -0.0137 -0.1538)
OKLCH	oklch(60.42% 0.154 264.9)
XYZ	xyz(23.8216, 21.4726, 71.2819)
Luminance	0.2147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CDD #DDB453

analogous

#53C1DD #537CDD #6F53DD

triadic

#537CDD #DD537C #7CDD53

tetradic

#537CDD #DD53C1 #DDB453 #53DD6F

square

#537CDD #DD53C1 #DDB453 #53DD6F

split-complementary

#537CDD #DD6F53 #C1DD53

monochromatic

#1E4298 #2858CB #537CDD #86A3E7 #B9CAF1

Accessibility & contrast

On white

3.97

#537CDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#537CDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CDD

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CDD	#FFFFFF	#000000	##000000
##537CDD	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F86E1

Deuteranopia (green-blind)

#397ADB

Tritanopia (blue-blind)

#0092A2

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #537cdd;
/* rgb */ color: rgb(83, 124, 221);
/* oklch */ color: oklch(60.4% 0.154 264.9);

Tailwind

colors: {
  custom: {
    50: '#90a1e8',
    500: '#537cdd',
    950: '#000000',
  },
}

SCSS

$custom: #537cdd;
$custom-light: #90a1e8;
$custom-dark: #000000;

JSON

{
  "hex": "#537cdd",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 221
  },
  "hsl": {
    "h": 222.174,
    "s": 66.99,
    "l": 59.608
  },
  "oklch": {
    "l": 0.60424,
    "c": 0.15442,
    "h": 264.9
  },
  "luminance": 0.21475
}

Semantic roles & 50–950 ramp

primary

#537CDD

secondary

#E1D1AB

accent

#B73EEA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #537CDD

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

Preview Lab → · Contrast checker → · Palette generator →