#538BDF#538BDF

#538BDF is a light, vivid blue. Relative luminance 0.256; OKLCH L 63.7% C 0.140 H 258.3°. Best body text is #000000 at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#538BDF
RGB	rgb(83, 139, 223)
HSL	hsl(216, 69%, 60%)
HSV	hsv(216, 63%, 87%)
CMYK	cmyk(62.8%, 37.7%, 0%, 12.5%)
CIE-LAB	lab(57.68, 7.45, -48.30)
CIE-LCH	lch(57.68, 48.87, 278.77°)
OKLab	oklab(63.72% -0.0284 -0.1372)
OKLCH	oklch(63.72% 0.14 258.3)
XYZ	xyz(26.1144, 25.6295, 73.3685)
Luminance	0.2563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538BDF #DFA753

analogous

#53D1DF #538BDF #6153DF

triadic

#538BDF #DF538B #8BDF53

tetradic

#538BDF #DF53D1 #DFA753 #53DF61

square

#538BDF #DF53D1 #DFA753 #53DF61

split-complementary

#538BDF #DF6153 #D1DF53

monochromatic

#1D4F9B #266ACE #538BDF #87AEE9 #BAD1F2

Accessibility & contrast

On white

3.43

#538BDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.13

#538BDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538BDF

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538BDF	#FFFFFF	#000000	##000000
##538BDF	1.00	3.43	6.13	6.13
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.13	21.00	1.00	1.00
##000000	6.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6692E2

Deuteranopia (green-blind)

#5385DD

Tritanopia (blue-blind)

#009EAA

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #538bdf;
/* rgb */ color: rgb(83, 139, 223);
/* oklch */ color: oklch(63.7% 0.140 258.3);

Tailwind

colors: {
  custom: {
    50: '#90ace9',
    500: '#538bdf',
    950: '#000000',
  },
}

SCSS

$custom: #538bdf;
$custom-light: #90ace9;
$custom-dark: #000000;

JSON

{
  "hex": "#538bdf",
  "rgb": {
    "r": 83,
    "g": 139,
    "b": 223
  },
  "hsl": {
    "h": 216,
    "s": 68.627,
    "l": 60
  },
  "oklch": {
    "l": 0.63722,
    "c": 0.1401,
    "h": 258.3
  },
  "luminance": 0.25632
}

Semantic roles & 50–950 ramp

primary

#538BDF

secondary

#E2CCAC

accent

#A53CEB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #538BDF

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

Preview Lab → · Contrast checker → · Palette generator →