#538BF4#538BF4

#538BF4 is a light, vivid blue. Relative luminance 0.268; OKLCH L 65.0% C 0.168 H 261.7°. Best body text is #000000 at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#538BF4
RGB	rgb(83, 139, 244)
HSL	hsl(219, 88%, 64%)
HSV	hsv(219, 66%, 96%)
CMYK	cmyk(66%, 43%, 0%, 4.3%)
CIE-LAB	lab(58.82, 14.59, -58.15)
CIE-LCH	lch(58.82, 59.95, 284.08°)
OKLab	oklab(64.97% -0.0241 -0.1661)
OKLCH	oklch(64.97% 0.168 261.7)
XYZ	xyz(29.1232, 26.8330, 89.2149)
Luminance	0.2684 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538BF4 #F4BC53

analogous

#53DCF4 #538BF4 #6C53F4

triadic

#538BF4 #F4538B #8BF453

tetradic

#538BF4 #F453DC #F4BC53 #53F46C

square

#538BF4 #F453DC #F4BC53 #53F46C

split-complementary

#538BF4 #F46C53 #DCF453

monochromatic

#0C4BC0 #1964F0 #538BF4 #8DB2F8 #C6D9FB

Accessibility & contrast

On white

3.30

#538BF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.37

#538BF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538BF4

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538BF4	#FFFFFF	#000000	##000000
##538BF4	1.00	3.30	6.37	6.37
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.37	21.00	1.00	1.00
##000000	6.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5995F8

Deuteranopia (green-blind)

#3E87F2

Tritanopia (blue-blind)

#00A3B4

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #538bf4;
/* rgb */ color: rgb(83, 139, 244);
/* oklch */ color: oklch(65.0% 0.168 261.7);

Tailwind

colors: {
  custom: {
    50: '#93acf8',
    500: '#538bf4',
    950: '#000000',
  },
}

SCSS

$custom: #538bf4;
$custom-light: #93acf8;
$custom-dark: #000000;

JSON

{
  "hex": "#538bf4",
  "rgb": {
    "r": 83,
    "g": 139,
    "b": 244
  },
  "hsl": {
    "h": 219.13,
    "s": 87.978,
    "l": 64.118
  },
  "oklch": {
    "l": 0.6497,
    "c": 0.16784,
    "h": 261.7
  },
  "luminance": 0.26836
}

Semantic roles & 50–950 ramp

primary

#538BF4

secondary

#EDDAB5

accent

#9501E5

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #538BF4

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

Preview Lab → · Contrast checker → · Palette generator →