#538BE9#538BE9

#538BE9 is a light, vivid blue. Relative luminance 0.262; OKLCH L 64.3% C 0.153 H 260.2°. Best body text is #000000 at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#538BE9
RGB	rgb(83, 139, 233)
HSL	hsl(218, 77%, 62%)
HSV	hsv(218, 64%, 91%)
CMYK	cmyk(64.4%, 40.3%, 0%, 8.6%)
CIE-LAB	lab(58.21, 10.83, -53.03)
CIE-LCH	lch(58.21, 54.12, 281.54°)
OKLab	oklab(64.3% -0.0262 -0.1511)
OKLCH	oklch(64.3% 0.153 260.2)
XYZ	xyz(27.5027, 26.1848, 80.6798)
Luminance	0.2619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538BE9 #E9B153

analogous

#53D6E9 #538BE9 #6653E9

triadic

#538BE9 #E9538B #8BE953

tetradic

#538BE9 #E953D6 #E9B153 #53E966

square

#538BE9 #E953D6 #E9B153 #53E966

split-complementary

#538BE9 #E96653 #D6E953

monochromatic

#164EAC #1D66E2 #538BE9 #89B0F0 #C0D4F7

Accessibility & contrast

On white

3.37

#538BE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.24

#538BE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538BE9

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538BE9	#FFFFFF	#000000	##000000
##538BE9	1.00	3.37	6.24	6.24
#FFFFFF	3.37	1.00	21.00	21.00
#000000	6.24	21.00	1.00	1.00
##000000	6.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6093ED

Deuteranopia (green-blind)

#4A86E7

Tritanopia (blue-blind)

#00A0AF

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #538be9;
/* rgb */ color: rgb(83, 139, 233);
/* oklch */ color: oklch(64.3% 0.153 260.2);

Tailwind

colors: {
  custom: {
    50: '#91acf0',
    500: '#538be9',
    950: '#000000',
  },
}

SCSS

$custom: #538be9;
$custom-light: #91acf0;
$custom-dark: #000000;

JSON

{
  "hex": "#538be9",
  "rgb": {
    "r": 83,
    "g": 139,
    "b": 233
  },
  "hsl": {
    "h": 217.6,
    "s": 77.32,
    "l": 61.961
  },
  "oklch": {
    "l": 0.64303,
    "c": 0.15332,
    "h": 260.2
  },
  "luminance": 0.26187
}

Semantic roles & 50–950 ramp

primary

#538BE9

secondary

#E8D3B0

accent

#8D0CDA

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #538BE9

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

Preview Lab → · Contrast checker → · Palette generator →