#537BF1#537BF1

#537BF1 is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.5% C 0.183 H 266.9°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#537BF1
RGB	rgb(83, 123, 241)
HSL	hsl(225, 85%, 64%)
HSV	hsv(225, 66%, 95%)
CMYK	cmyk(65.6%, 49%, 0%, 5.5%)
CIE-LAB	lab(54.40, 23.28, -63.58)
CIE-LCH	lch(54.40, 67.71, 290.11°)
OKLab	oklab(61.53% -0.0099 -0.1823)
OKLCH	oklch(61.53% 0.183 266.9)
XYZ	xyz(26.5219, 22.3533, 86.1189)
Luminance	0.2236 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BF1 #F1C953

analogous

#53CAF1 #537BF1 #7A53F1

triadic

#537BF1 #F1537B #7BF153

tetradic

#537BF1 #F153CA #F1C953 #53F17A

square

#537BF1 #F153CA #F1C953 #53F17A

split-complementary

#537BF1 #F17A53 #CAF153

monochromatic

#0F3BBA #1A50EC #537BF1 #8CA6F6 #C4D2FA

Accessibility & contrast

On white

3.84

#537BF1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#537BF1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BF1

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BF1	#FFFFFF	#000000	##000000
##537BF1	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#398AF5

Deuteranopia (green-blind)

#067BEF

Tritanopia (blue-blind)

#0097AB

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #537bf1;
/* rgb */ color: rgb(83, 123, 241);
/* oklch */ color: oklch(61.5% 0.183 266.9);

Tailwind

colors: {
  custom: {
    50: '#93a0f6',
    500: '#537bf1',
    950: '#000000',
  },
}

SCSS

$custom: #537bf1;
$custom-light: #93a0f6;
$custom-dark: #000000;

JSON

{
  "hex": "#537bf1",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 241
  },
  "hsl": {
    "h": 224.81,
    "s": 84.946,
    "l": 63.529
  },
  "oklch": {
    "l": 0.61527,
    "c": 0.18257,
    "h": 266.9
  },
  "luminance": 0.22356
}

Semantic roles & 50–950 ramp

primary

#537BF1

secondary

#ECDEB4

accent

#A904E1

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #537BF1

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

Preview Lab → · Contrast checker → · Palette generator →