#537ACE#537ACE

#537ACE is a mid, vivid blue. Relative luminance 0.202; OKLCH L 59.1% C 0.136 H 263.9°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#537ACE
RGB	rgb(83, 122, 206)
HSL	hsl(221, 56%, 57%)
HSV	hsv(221, 60%, 81%)
CMYK	cmyk(59.7%, 40.8%, 0%, 19.2%)
CIE-LAB	lab(52.08, 11.99, -47.63)
CIE-LCH	lch(52.08, 49.11, 284.13°)
OKLab	oklab(59.08% -0.0144 -0.1354)
OKLCH	oklch(59.08% 0.136 263.9)
XYZ	xyz(21.6636, 20.2125, 61.1403)
Luminance	0.2021 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537ACE #CEA753

analogous

#53B7CE #537ACE #6A53CE

triadic

#537ACE #CE537A #7ACE53

tetradic

#537ACE #CE53B7 #CEA753 #53CE6A

square

#537ACE #CE53B7 #CEA753 #53CE6A

split-complementary

#537ACE #CE6A53 #B7CE53

monochromatic

#254282 #335BB1 #537ACE #839FDC #B2C4E9

Accessibility & contrast

On white

4.16

#537ACE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#537ACE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537ACE

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537ACE	#FFFFFF	#000000	##000000
##537ACE	1.00	4.16	5.04	5.04
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5582D1

Deuteranopia (green-blind)

#4477CC

Tritanopia (blue-blind)

#008D9A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #537ace;
/* rgb */ color: rgb(83, 122, 206);
/* oklch */ color: oklch(59.1% 0.136 263.9);

Tailwind

colors: {
  custom: {
    50: '#8da0dd',
    500: '#537ace',
    950: '#000000',
  },
}

SCSS

$custom: #537ace;
$custom-light: #8da0dd;
$custom-dark: #000000;

JSON

{
  "hex": "#537ace",
  "rgb": {
    "r": 83,
    "g": 122,
    "b": 206
  },
  "hsl": {
    "h": 220.976,
    "s": 55.656,
    "l": 56.667
  },
  "oklch": {
    "l": 0.59084,
    "c": 0.1362,
    "h": 263.9
  },
  "luminance": 0.20214
}

Semantic roles & 50–950 ramp

primary

#537ACE

secondary

#D8C8A5

accent

#AF49DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #537ACE

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

Preview Lab → · Contrast checker → · Palette generator →