#537FE7#537FE7

#537FE7 is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.7% C 0.164 H 264.8°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#537FE7
RGB	rgb(83, 127, 231)
HSL	hsl(222, 76%, 62%)
HSV	hsv(222, 64%, 91%)
CMYK	cmyk(64.1%, 45%, 0%, 9.4%)
CIE-LAB	lab(54.85, 17.41, -57.28)
CIE-LCH	lch(54.85, 59.87, 286.91°)
OKLab	oklab(61.68% -0.015 -0.1637)
OKLCH	oklch(61.68% 0.164 264.8)
XYZ	xyz(25.5754, 22.7849, 78.6359)
Luminance	0.2279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FE7 #E7BB53

analogous

#53C9E7 #537FE7 #7153E7

triadic

#537FE7 #E7537F #7FE753

tetradic

#537FE7 #E753C9 #E7BB53 #53E771

square

#537FE7 #E753C9 #E7BB53 #53E771

split-complementary

#537FE7 #E77153 #C9E753

monochromatic

#1742A8 #1F58DE #537FE7 #89A7EE #BECFF6

Accessibility & contrast

On white

3.78

#537FE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#537FE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FE7

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FE7	#FFFFFF	#000000	##000000
##537FE7	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C8AEB

Deuteranopia (green-blind)

#327DE5

Tritanopia (blue-blind)

#0097A8

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #537fe7;
/* rgb */ color: rgb(83, 127, 231);
/* oklch */ color: oklch(61.7% 0.164 264.8);

Tailwind

colors: {
  custom: {
    50: '#91a3ef',
    500: '#537fe7',
    950: '#000000',
  },
}

SCSS

$custom: #537fe7;
$custom-light: #91a3ef;
$custom-dark: #000000;

JSON

{
  "hex": "#537fe7",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 231
  },
  "hsl": {
    "h": 222.162,
    "s": 75.51,
    "l": 61.569
  },
  "oklch": {
    "l": 0.61676,
    "c": 0.1644,
    "h": 264.8
  },
  "luminance": 0.22787
}

Semantic roles & 50–950 ramp

primary

#537FE7

secondary

#E6D6AF

accent

#9C0ED8

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #537FE7

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

Preview Lab → · Contrast checker → · Palette generator →