#537FD8#537FD8

#537FD8 is a mid, vivid blue. Relative luminance 0.220; OKLCH L 60.7% C 0.144 H 263.0°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#537FD8
RGB	rgb(83, 127, 216)
HSL	hsl(220, 63%, 59%)
HSV	hsv(220, 62%, 85%)
CMYK	cmyk(61.6%, 41.2%, 0%, 15.3%)
CIE-LAB	lab(54.00, 12.31, -50.23)
CIE-LCH	lch(54.00, 51.71, 283.77°)
OKLab	oklab(60.75% -0.0176 -0.143)
OKLCH	oklch(60.75% 0.144 263)
XYZ	xyz(23.5470, 21.9735, 67.9528)
Luminance	0.2198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FD8 #D8AC53

analogous

#53C2D8 #537FD8 #6953D8

triadic

#537FD8 #D8537F #7FD853

tetradic

#537FD8 #D853C2 #D8AC53 #53D869

square

#537FD8 #D853C2 #D8AC53 #53D869

split-complementary

#537FD8 #D86953 #C2D853

monochromatic

#214590 #2C5EC2 #537FD8 #85A4E3 #B7C9EF

Accessibility & contrast

On white

3.89

#537FD8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#537FD8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FD8

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FD8	#FFFFFF	#000000	##000000
##537FD8	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5788DB

Deuteranopia (green-blind)

#447BD6

Tritanopia (blue-blind)

#0093A1

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #537fd8;
/* rgb */ color: rgb(83, 127, 216);
/* oklch */ color: oklch(60.7% 0.144 263.0);

Tailwind

colors: {
  custom: {
    50: '#8fa3e4',
    500: '#537fd8',
    950: '#000000',
  },
}

SCSS

$custom: #537fd8;
$custom-light: #8fa3e4;
$custom-dark: #000000;

JSON

{
  "hex": "#537fd8",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 216
  },
  "hsl": {
    "h": 220.15,
    "s": 63.033,
    "l": 58.627
  },
  "oklch": {
    "l": 0.60746,
    "c": 0.14408,
    "h": 263
  },
  "luminance": 0.21976
}

Semantic roles & 50–950 ramp

primary

#537FD8

secondary

#DECCA9

accent

#B042E6

background

#F9FAFE

surface

#F2F3FC

border

#CCCDD5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #537FD8

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

Preview Lab → · Contrast checker → · Palette generator →