#538CDD#538CDD

#538CDD is a light, vivid blue. Relative luminance 0.258; OKLCH L 63.8% C 0.136 H 257.4°. Best body text is #000000 at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#538CDD
RGB	rgb(83, 140, 221)
HSL	hsl(215, 67%, 60%)
HSV	hsv(215, 62%, 87%)
CMYK	cmyk(62.4%, 36.7%, 0%, 13.3%)
CIE-LAB	lab(57.86, 6.18, -46.90)
CIE-LCH	lch(57.86, 47.31, 277.51°)
OKLab	oklab(63.83% -0.0299 -0.1331)
OKLCH	oklch(63.83% 0.136 257.4)
XYZ	xyz(25.9918, 25.8132, 72.0053)
Luminance	0.2582 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538CDD #DDA453

analogous

#53D1DD #538CDD #5F53DD

triadic

#538CDD #DD538C #8CDD53

tetradic

#538CDD #DD53D1 #DDA453 #53DD5F

square

#538CDD #DD53D1 #DDA453 #53DD5F

split-complementary

#538CDD #DD5F53 #D1DD53

monochromatic

#1E5098 #286BCB #538CDD #86AEE7 #B9D0F1

Accessibility & contrast

On white

3.41

#538CDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.16

#538CDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538CDD

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538CDD	#FFFFFF	#000000	##000000
##538CDD	1.00	3.41	6.16	6.16
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.16	21.00	1.00	1.00
##000000	6.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6992E0

Deuteranopia (green-blind)

#5685DB

Tritanopia (blue-blind)

#009EAA

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #538cdd;
/* rgb */ color: rgb(83, 140, 221);
/* oklch */ color: oklch(63.8% 0.136 257.4);

Tailwind

colors: {
  custom: {
    50: '#8fade8',
    500: '#538cdd',
    950: '#000000',
  },
}

SCSS

$custom: #538cdd;
$custom-light: #8fade8;
$custom-dark: #000000;

JSON

{
  "hex": "#538cdd",
  "rgb": {
    "r": 83,
    "g": 140,
    "b": 221
  },
  "hsl": {
    "h": 215.217,
    "s": 66.99,
    "l": 59.608
  },
  "oklch": {
    "l": 0.63825,
    "c": 0.13642,
    "h": 257.4
  },
  "luminance": 0.25816
}

Semantic roles & 50–950 ramp

primary

#538CDD

secondary

#E1CBAB

accent

#A33EEA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #538CDD

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

Preview Lab → · Contrast checker → · Palette generator →