#538DDF#538DDF

#538DDF is a light, vivid blue. Relative luminance 0.262; OKLCH L 64.2% C 0.138 H 257.3°. Best body text is #000000 at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#538DDF
RGB	rgb(83, 141, 223)
HSL	hsl(215, 69%, 60%)
HSV	hsv(215, 63%, 87%)
CMYK	cmyk(62.8%, 36.8%, 0%, 12.5%)
CIE-LAB	lab(58.24, 6.26, -47.42)
CIE-LCH	lch(58.24, 47.83, 277.52°)
OKLab	oklab(64.15% -0.0304 -0.1346)
OKLCH	oklch(64.15% 0.138 257.3)
XYZ	xyz(26.4067, 26.2140, 73.4659)
Luminance	0.2622 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538DDF #DFA553

analogous

#53D3DF #538DDF #5F53DF

triadic

#538DDF #DF538D #8DDF53

tetradic

#538DDF #DF53D3 #DFA553 #53DF5F

square

#538DDF #DF53D3 #DFA553 #53DF5F

split-complementary

#538DDF #DF5F53 #D3DF53

monochromatic

#1D519B #266CCE #538DDF #87AFE9 #BAD1F2

Accessibility & contrast

On white

3.36

#538DDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.24

#538DDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538DDF

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538DDF	#FFFFFF	#000000	##000000
##538DDF	1.00	3.36	6.24	6.24
#FFFFFF	3.36	1.00	21.00	21.00
#000000	6.24	21.00	1.00	1.00
##000000	6.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6993E2

Deuteranopia (green-blind)

#5686DD

Tritanopia (blue-blind)

#00A0AB

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #538ddf;
/* rgb */ color: rgb(83, 141, 223);
/* oklch */ color: oklch(64.2% 0.138 257.3);

Tailwind

colors: {
  custom: {
    50: '#90ade9',
    500: '#538ddf',
    950: '#000000',
  },
}

SCSS

$custom: #538ddf;
$custom-light: #90ade9;
$custom-dark: #000000;

JSON

{
  "hex": "#538ddf",
  "rgb": {
    "r": 83,
    "g": 141,
    "b": 223
  },
  "hsl": {
    "h": 215.143,
    "s": 68.627,
    "l": 60
  },
  "oklch": {
    "l": 0.64154,
    "c": 0.13799,
    "h": 257.3
  },
  "luminance": 0.26216
}

Semantic roles & 50–950 ramp

primary

#538DDF

secondary

#E2CCAC

accent

#A33CEB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #538DDF

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

Preview Lab → · Contrast checker → · Palette generator →