#538AFF#538AFF

#538AFF is a light, vivid blue. Relative luminance 0.272; OKLCH L 65.5% C 0.183 H 263.3°. Best body text is #000000 at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#538AFF
RGB	rgb(83, 138, 255)
HSL	hsl(221, 100%, 66%)
HSV	hsv(221, 67%, 100%)
CMYK	cmyk(67.5%, 45.9%, 0%, 0%)
CIE-LAB	lab(59.19, 18.97, -63.61)
CIE-LCH	lch(59.19, 66.38, 286.60°)
OKLab	oklab(65.46% -0.0214 -0.1822)
OKLCH	oklch(65.46% 0.183 263.3)
XYZ	xyz(30.6994, 27.2329, 98.2269)
Luminance	0.2724 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538AFF #FFC853

analogous

#53E0FF #538AFF #7253FF

triadic

#538AFF #FF538A #8AFF53

tetradic

#538AFF #FF53E0 #FFC853 #53FF72

square

#538AFF #FF53E0 #FFC853 #53FF72

split-complementary

#538AFF #FF7253 #E0FF53

monochromatic

#0045D8 #1660FF #538AFF #90B4FF #CDDDFF

Accessibility & contrast

On white

3.26

#538AFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.45

#538AFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538AFF

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538AFF	#FFFFFF	#000000	##000000
##538AFF	1.00	3.26	6.45	6.45
#FFFFFF	3.26	1.00	21.00	21.00
#000000	6.45	21.00	1.00	1.00
##000000	6.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E97FF

Deuteranopia (green-blind)

#2987FD

Tritanopia (blue-blind)

#00A5B8

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #538aff;
/* rgb */ color: rgb(83, 138, 255);
/* oklch */ color: oklch(65.5% 0.183 263.3);

Tailwind

colors: {
  custom: {
    50: '#95abff',
    500: '#538aff',
    950: '#000000',
  },
}

SCSS

$custom: #538aff;
$custom-light: #95abff;
$custom-dark: #000000;

JSON

{
  "hex": "#538aff",
  "rgb": {
    "r": 83,
    "g": 138,
    "b": 255
  },
  "hsl": {
    "h": 220.814,
    "s": 100,
    "l": 66.275
  },
  "oklch": {
    "l": 0.65459,
    "c": 0.18342,
    "h": 263.3
  },
  "luminance": 0.27236
}

Semantic roles & 50–950 ramp

primary

#538AFF

secondary

#F3E1BB

accent

#9C00E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F1018

muted

#7E7F86

Preview Lab

Preview with #538AFF

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

Preview Lab → · Contrast checker → · Palette generator →