#538FF4#538FF4

#538FF4 is a light, vivid blue. Relative luminance 0.280; OKLCH L 65.8% C 0.163 H 260.2°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#538FF4
RGB	rgb(83, 143, 244)
HSL	hsl(218, 88%, 64%)
HSV	hsv(218, 66%, 96%)
CMYK	cmyk(66%, 41.4%, 0%, 4.3%)
CIE-LAB	lab(59.90, 12.19, -56.42)
CIE-LCH	lch(59.90, 57.73, 282.19°)
OKLab	oklab(65.8% -0.0278 -0.161)
OKLCH	oklch(65.8% 0.163 260.2)
XYZ	xyz(29.7131, 28.0126, 89.4115)
Luminance	0.2802 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538FF4 #F4B853

analogous

#53DFF4 #538FF4 #6853F4

triadic

#538FF4 #F4538F #8FF453

tetradic

#538FF4 #F453DF #F4B853 #53F468

square

#538FF4 #F453DF #F4B853 #53F468

split-complementary

#538FF4 #F46853 #DFF453

monochromatic

#0C4FC0 #196AF0 #538FF4 #8DB4F8 #C6DAFB

Accessibility & contrast

On white

3.18

#538FF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#538FF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538FF4

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538FF4	#FFFFFF	#000000	##000000
##538FF4	1.00	3.18	6.60	6.60
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.60	21.00	1.00	1.00
##000000	6.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6098F8

Deuteranopia (green-blind)

#4689F2

Tritanopia (blue-blind)

#00A6B6

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #538ff4;
/* rgb */ color: rgb(83, 143, 244);
/* oklch */ color: oklch(65.8% 0.163 260.2);

Tailwind

colors: {
  custom: {
    50: '#93aff8',
    500: '#538ff4',
    950: '#000000',
  },
}

SCSS

$custom: #538ff4;
$custom-light: #93aff8;
$custom-dark: #000000;

JSON

{
  "hex": "#538ff4",
  "rgb": {
    "r": 83,
    "g": 143,
    "b": 244
  },
  "hsl": {
    "h": 217.64,
    "s": 87.978,
    "l": 64.118
  },
  "oklch": {
    "l": 0.65804,
    "c": 0.16336,
    "h": 260.2
  },
  "luminance": 0.28016
}

Semantic roles & 50–950 ramp

primary

#538FF4

secondary

#EDD9B5

accent

#9001E5

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #538FF4

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

Preview Lab → · Contrast checker → · Palette generator →