#538CDF#538CDF

#538CDF is a light, vivid blue. Relative luminance 0.259; OKLCH L 63.9% C 0.139 H 257.8°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#538CDF
RGB	rgb(83, 140, 223)
HSL	hsl(216, 69%, 60%)
HSV	hsv(216, 63%, 87%)
CMYK	cmyk(62.8%, 37.2%, 0%, 12.5%)
CIE-LAB	lab(57.96, 6.85, -47.86)
CIE-LCH	lch(57.96, 48.35, 278.15°)
OKLab	oklab(63.94% -0.0294 -0.1359)
OKLCH	oklch(63.94% 0.139 257.8)
XYZ	xyz(26.2599, 25.9204, 73.4170)
Luminance	0.2592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538CDF #DFA653

analogous

#53D2DF #538CDF #6053DF

triadic

#538CDF #DF538C #8CDF53

tetradic

#538CDF #DF53D2 #DFA653 #53DF60

square

#538CDF #DF53D2 #DFA653 #53DF60

split-complementary

#538CDF #DF6053 #D2DF53

monochromatic

#1D509B #266BCE #538CDF #87AFE9 #BAD1F2

Accessibility & contrast

On white

3.40

#538CDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#538CDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538CDF

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538CDF	#FFFFFF	#000000	##000000
##538CDF	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6892E2

Deuteranopia (green-blind)

#5485DD

Tritanopia (blue-blind)

#009FAB

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #538cdf;
/* rgb */ color: rgb(83, 140, 223);
/* oklch */ color: oklch(63.9% 0.139 257.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#538cdf",
  "rgb": {
    "r": 83,
    "g": 140,
    "b": 223
  },
  "hsl": {
    "h": 215.571,
    "s": 68.627,
    "l": 60
  },
  "oklch": {
    "l": 0.63938,
    "c": 0.13904,
    "h": 257.8
  },
  "luminance": 0.25923
}

Semantic roles & 50–950 ramp

primary

#538CDF

secondary

#E2CCAC

accent

#A43CEB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #538CDF

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

Preview Lab → · Contrast checker → · Palette generator →