#538BDD#538BDD

#538BDD is a light, vivid blue. Relative luminance 0.255; OKLCH L 63.6% C 0.137 H 257.9°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#538BDD
RGB	rgb(83, 139, 221)
HSL	hsl(216, 67%, 60%)
HSV	hsv(216, 62%, 87%)
CMYK	cmyk(62.4%, 37.1%, 0%, 13.3%)
CIE-LAB	lab(57.58, 6.78, -47.34)
CIE-LCH	lch(57.58, 47.83, 278.14°)
OKLab	oklab(63.61% -0.0288 -0.1344)
OKLCH	oklch(63.61% 0.137 257.9)
XYZ	xyz(25.8464, 25.5223, 71.9568)
Luminance	0.2552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538BDD #DDA553

analogous

#53D0DD #538BDD #6053DD

triadic

#538BDD #DD538B #8BDD53

tetradic

#538BDD #DD53D0 #DDA553 #53DD60

square

#538BDD #DD53D0 #DDA553 #53DD60

split-complementary

#538BDD #DD6053 #D0DD53

monochromatic

#1E4F98 #286ACB #538BDD #86ADE7 #B9D0F1

Accessibility & contrast

On white

3.44

#538BDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.10

#538BDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538BDD

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538BDD	#FFFFFF	#000000	##000000
##538BDD	1.00	3.44	6.10	6.10
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.10	21.00	1.00	1.00
##000000	6.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6791E0

Deuteranopia (green-blind)

#5484DB

Tritanopia (blue-blind)

#009EA9

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #538bdd;
/* rgb */ color: rgb(83, 139, 221);
/* oklch */ color: oklch(63.6% 0.137 257.9);

Tailwind

colors: {
  custom: {
    50: '#8face8',
    500: '#538bdd',
    950: '#000000',
  },
}

SCSS

$custom: #538bdd;
$custom-light: #8face8;
$custom-dark: #000000;

JSON

{
  "hex": "#538bdd",
  "rgb": {
    "r": 83,
    "g": 139,
    "b": 221
  },
  "hsl": {
    "h": 215.652,
    "s": 66.99,
    "l": 59.608
  },
  "oklch": {
    "l": 0.63608,
    "c": 0.13747,
    "h": 257.9
  },
  "luminance": 0.25525
}

Semantic roles & 50–950 ramp

primary

#538BDD

secondary

#E1CBAB

accent

#A43EEA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #538BDD

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

Preview Lab → · Contrast checker → · Palette generator →