#537EB3#537EB3

#537EB3 is a mid, moderate cyan. Relative luminance 0.200; OKLCH L 58.5% C 0.095 H 254.3°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#537EB3
RGB	rgb(83, 126, 179)
HSL	hsl(213, 39%, 51%)
HSV	hsv(213, 54%, 70%)
CMYK	cmyk(53.6%, 29.6%, 0%, 29.8%)
CIE-LAB	lab(51.85, 0.71, -32.53)
CIE-LCH	lch(51.85, 32.54, 271.25°)
OKLab	oklab(58.47% -0.0257 -0.0914)
OKLCH	oklch(58.47% 0.095 254.3)
XYZ	xyz(19.1620, 20.0139, 45.4924)
Luminance	0.2001 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537EB3 #B38853

analogous

#53AEB3 #537EB3 #5853B3

triadic

#537EB3 #B3537E #7EB353

tetradic

#537EB3 #B353AE #B38853 #53B358

square

#537EB3 #B353AE #B38853 #53B358

split-complementary

#537EB3 #B35853 #AEB353

monochromatic

#2B4361 #3E608B #537EB3 #7D9EC6 #A8BED9

Accessibility & contrast

On white

4.20

#537EB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#537EB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537EB3

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537EB3	#FFFFFF	#000000	##000000
##537EB3	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6981B5

Deuteranopia (green-blind)

#5D77B2

Tritanopia (blue-blind)

#1D8A91

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #537eb3;
/* rgb */ color: rgb(83, 126, 179);
/* oklch */ color: oklch(58.5% 0.095 254.3);

Tailwind

colors: {
  custom: {
    50: '#8aa3ca',
    500: '#537eb3',
    950: '#000000',
  },
}

SCSS

$custom: #537eb3;
$custom-light: #8aa3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#537eb3",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 179
  },
  "hsl": {
    "h": 213.125,
    "s": 38.71,
    "l": 51.373
  },
  "oklch": {
    "l": 0.58468,
    "c": 0.09493,
    "h": 254.3
  },
  "luminance": 0.20015
}

Semantic roles & 50–950 ramp

primary

#537EB3

secondary

#C6B39C

accent

#9A59CF

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #537EB3

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

Preview Lab → · Contrast checker → · Palette generator →