#537BF0#537BF0

#537BF0 is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.5% C 0.181 H 266.8°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#537BF0
RGB	rgb(83, 123, 240)
HSL	hsl(225, 84%, 63%)
HSV	hsv(225, 65%, 94%)
CMYK	cmyk(65.4%, 48.7%, 0%, 5.9%)
CIE-LAB	lab(54.34, 22.94, -63.12)
CIE-LCH	lch(54.34, 67.16, 289.97°)
OKLab	oklab(61.46% -0.01 -0.181)
OKLCH	oklch(61.46% 0.181 266.8)
XYZ	xyz(26.3730, 22.2937, 85.3344)
Luminance	0.2230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BF0 #F0C853

analogous

#53CAF0 #537BF0 #7953F0

triadic

#537BF0 #F0537B #7BF053

tetradic

#537BF0 #F053CA #F0C853 #53F079

square

#537BF0 #F053CA #F0C853 #53F079

split-complementary

#537BF0 #F07953 #CAF053

monochromatic

#103BB9 #1B50EB #537BF0 #8BA6F5 #C4D1FA

Accessibility & contrast

On white

3.85

#537BF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#537BF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BF0

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BF0	#FFFFFF	#000000	##000000
##537BF0	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B89F4

Deuteranopia (green-blind)

#0C7BEE

Tritanopia (blue-blind)

#0096AA

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #537bf0;
/* rgb */ color: rgb(83, 123, 240);
/* oklch */ color: oklch(61.5% 0.181 266.8);

Tailwind

colors: {
  custom: {
    50: '#93a0f6',
    500: '#537bf0',
    950: '#000000',
  },
}

SCSS

$custom: #537bf0;
$custom-light: #93a0f6;
$custom-dark: #000000;

JSON

{
  "hex": "#537bf0",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 240
  },
  "hsl": {
    "h": 224.713,
    "s": 83.957,
    "l": 63.333
  },
  "oklch": {
    "l": 0.61459,
    "c": 0.18124,
    "h": 266.8
  },
  "luminance": 0.22296
}

Semantic roles & 50–950 ramp

primary

#537BF0

secondary

#EBDDB3

accent

#A905E0

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #537BF0

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

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