#537FDA#537FDA

#537FDA is a mid, vivid blue. Relative luminance 0.221; OKLCH L 60.9% C 0.147 H 263.3°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#537FDA
RGB	rgb(83, 127, 218)
HSL	hsl(220, 65%, 59%)
HSV	hsv(220, 62%, 85%)
CMYK	cmyk(61.9%, 41.7%, 0%, 14.5%)
CIE-LAB	lab(54.11, 12.99, -51.18)
CIE-LCH	lch(54.11, 52.80, 284.24°)
OKLab	oklab(60.87% -0.0173 -0.1458)
OKLCH	oklch(60.87% 0.147 263.3)
XYZ	xyz(23.8071, 22.0776, 69.3229)
Luminance	0.2208 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FDA #DAAE53

analogous

#53C3DA #537FDA #6B53DA

triadic

#537FDA #DA537F #7FDA53

tetradic

#537FDA #DA53C3 #DAAE53 #53DA6B

square

#537FDA #DA53C3 #DAAE53 #53DA6B

split-complementary

#537FDA #DA6B53 #C3DA53

monochromatic

#204593 #2A5DC5 #537FDA #85A4E5 #B8CAF0

Accessibility & contrast

On white

3.88

#537FDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#537FDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FDA

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FDA	#FFFFFF	#000000	##000000
##537FDA	1.00	3.88	5.42	5.42
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5688DE

Deuteranopia (green-blind)

#427CD8

Tritanopia (blue-blind)

#0094A2

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #537fda;
/* rgb */ color: rgb(83, 127, 218);
/* oklch */ color: oklch(60.9% 0.147 263.3);

Tailwind

colors: {
  custom: {
    50: '#8fa3e6',
    500: '#537fda',
    950: '#000000',
  },
}

SCSS

$custom: #537fda;
$custom-light: #8fa3e6;
$custom-dark: #000000;

JSON

{
  "hex": "#537fda",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 218
  },
  "hsl": {
    "h": 220.444,
    "s": 64.593,
    "l": 59.02
  },
  "oklch": {
    "l": 0.60867,
    "c": 0.14681,
    "h": 263.3
  },
  "luminance": 0.2208
}

Semantic roles & 50–950 ramp

primary

#537FDA

secondary

#DFCEAA

accent

#B140E8

background

#F9FAFE

surface

#F2F3FC

border

#CCCDD5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #537FDA

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

Preview Lab → · Contrast checker → · Palette generator →