#538FE5#538FE5

#538FE5 is a light, vivid blue. Relative luminance 0.271; OKLCH L 64.9% C 0.144 H 257.5°. Best body text is #000000 at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#538FE5
RGB	rgb(83, 143, 229)
HSL	hsl(215, 74%, 61%)
HSV	hsv(215, 64%, 90%)
CMYK	cmyk(63.8%, 37.6%, 0%, 10.2%)
CIE-LAB	lab(59.10, 7.09, -49.39)
CIE-LCH	lch(59.10, 49.90, 278.17°)
OKLab	oklab(64.93% -0.031 -0.1404)
OKLCH	oklch(64.93% 0.144 257.5)
XYZ	xyz(27.5275, 27.1384, 77.9011)
Luminance	0.2714 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538FE5 #E5A953

analogous

#53D8E5 #538FE5 #6053E5

triadic

#538FE5 #E5538F #8FE553

tetradic

#538FE5 #E553D8 #E5A953 #53E560

square

#538FE5 #E553D8 #E5A953 #53E560

split-complementary

#538FE5 #E56053 #D8E553

monochromatic

#1952A5 #216DDA #538FE5 #88B2ED #BDD4F5

Accessibility & contrast

On white

3.27

#538FE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.43

#538FE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538FE5

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538FE5	#FFFFFF	#000000	##000000
##538FE5	1.00	3.27	6.43	6.43
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.43	21.00	1.00	1.00
##000000	6.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6996E8

Deuteranopia (green-blind)

#5488E3

Tritanopia (blue-blind)

#00A3AF

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #538fe5;
/* rgb */ color: rgb(83, 143, 229);
/* oklch */ color: oklch(64.9% 0.144 257.5);

Tailwind

colors: {
  custom: {
    50: '#90afed',
    500: '#538fe5',
    950: '#000000',
  },
}

SCSS

$custom: #538fe5;
$custom-light: #90afed;
$custom-dark: #000000;

JSON

{
  "hex": "#538fe5",
  "rgb": {
    "r": 83,
    "g": 143,
    "b": 229
  },
  "hsl": {
    "h": 215.342,
    "s": 73.737,
    "l": 61.176
  },
  "oklch": {
    "l": 0.64926,
    "c": 0.14375,
    "h": 257.5
  },
  "luminance": 0.27141
}

Semantic roles & 50–950 ramp

primary

#538FE5

secondary

#E5CFAE

accent

#8410D6

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #538FE5

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

Preview Lab → · Contrast checker → · Palette generator →