#538DE9#538DE9

#538DE9 is a light, vivid blue. Relative luminance 0.268; OKLCH L 64.7% C 0.151 H 259.3°. Best body text is #000000 at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#538DE9
RGB	rgb(83, 141, 233)
HSL	hsl(217, 77%, 62%)
HSV	hsv(217, 64%, 91%)
CMYK	cmyk(64.4%, 39.5%, 0%, 8.6%)
CIE-LAB	lab(58.76, 9.64, -52.16)
CIE-LCH	lch(58.76, 53.04, 280.47°)
OKLab	oklab(64.73% -0.0282 -0.1485)
OKLCH	oklch(64.73% 0.151 259.3)
XYZ	xyz(27.7949, 26.7693, 80.7772)
Luminance	0.2677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538DE9 #E9AF53

analogous

#53D8E9 #538DE9 #6453E9

triadic

#538DE9 #E9538D #8DE953

tetradic

#538DE9 #E953D8 #E9AF53 #53E964

square

#538DE9 #E953D8 #E9AF53 #53E964

split-complementary

#538DE9 #E96453 #D8E953

monochromatic

#1650AC #1D69E2 #538DE9 #89B1F0 #C0D5F7

Accessibility & contrast

On white

3.30

#538DE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.35

#538DE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538DE9

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538DE9	#FFFFFF	#000000	##000000
##538DE9	1.00	3.30	6.35	6.35
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.35	21.00	1.00	1.00
##000000	6.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6495ED

Deuteranopia (green-blind)

#4E87E7

Tritanopia (blue-blind)

#00A2B0

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #538de9;
/* rgb */ color: rgb(83, 141, 233);
/* oklch */ color: oklch(64.7% 0.151 259.3);

Tailwind

colors: {
  custom: {
    50: '#91adf0',
    500: '#538de9',
    950: '#000000',
  },
}

SCSS

$custom: #538de9;
$custom-light: #91adf0;
$custom-dark: #000000;

JSON

{
  "hex": "#538de9",
  "rgb": {
    "r": 83,
    "g": 141,
    "b": 233
  },
  "hsl": {
    "h": 216.8,
    "s": 77.32,
    "l": 61.961
  },
  "oklch": {
    "l": 0.64728,
    "c": 0.15113,
    "h": 259.3
  },
  "luminance": 0.26772
}

Semantic roles & 50–950 ramp

primary

#538DE9

secondary

#E8D2B0

accent

#8A0CDA

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #538DE9

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

Preview Lab → · Contrast checker → · Palette generator →