#538AD9#538AD9

#538AD9 is a light, vivid blue. Relative luminance 0.250; OKLCH L 63.2% C 0.133 H 257.5°. Best body text is #000000 at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#538AD9
RGB	rgb(83, 138, 217)
HSL	hsl(215, 64%, 59%)
HSV	hsv(215, 62%, 85%)
CMYK	cmyk(61.8%, 36.4%, 0%, 14.9%)
CIE-LAB	lab(57.10, 6.03, -45.87)
CIE-LCH	lch(57.10, 46.26, 277.49°)
OKLab	oklab(63.17% -0.0288 -0.1301)
OKLCH	oklch(63.17% 0.133 257.5)
XYZ	xyz(25.1757, 25.0234, 69.1354)
Luminance	0.2503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538AD9 #D9A253

analogous

#53CDD9 #538AD9 #5F53D9

triadic

#538AD9 #D9538A #8AD953

tetradic

#538AD9 #D953CD #D9A253 #53D95F

square

#538AD9 #D953CD #D9A253 #53D95F

split-complementary

#538AD9 #D95F53 #CDD953

monochromatic

#204F91 #2B6AC4 #538AD9 #85ACE4 #B7CEEF

Accessibility & contrast

On white

3.50

#538AD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.01

#538AD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538AD9

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538AD9	#FFFFFF	#000000	##000000
##538AD9	1.00	3.50	6.01	6.01
#FFFFFF	3.50	1.00	21.00	21.00
#000000	6.01	21.00	1.00	1.00
##000000	6.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6890DC

Deuteranopia (green-blind)

#5683D7

Tritanopia (blue-blind)

#009CA7

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #538ad9;
/* rgb */ color: rgb(83, 138, 217);
/* oklch */ color: oklch(63.2% 0.133 257.5);

Tailwind

colors: {
  custom: {
    50: '#8fabe5',
    500: '#538ad9',
    950: '#000000',
  },
}

SCSS

$custom: #538ad9;
$custom-light: #8fabe5;
$custom-dark: #000000;

JSON

{
  "hex": "#538ad9",
  "rgb": {
    "r": 83,
    "g": 138,
    "b": 217
  },
  "hsl": {
    "h": 215.373,
    "s": 63.81,
    "l": 58.824
  },
  "oklch": {
    "l": 0.63166,
    "c": 0.13325,
    "h": 257.5
  },
  "luminance": 0.25026
}

Semantic roles & 50–950 ramp

primary

#538AD9

secondary

#DEC9AA

accent

#A341E7

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #538AD9

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

Preview Lab → · Contrast checker → · Palette generator →