#537F9B#537F9B

#537F9B is a mid, moderate cyan. Relative luminance 0.194; OKLCH L 57.6% C 0.065 H 237.4°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#537F9B
RGB	rgb(83, 127, 155)
HSL	hsl(203, 30%, 47%)
HSV	hsv(203, 46%, 61%)
CMYK	cmyk(46.5%, 18.1%, 0%, 39.2%)
CIE-LAB	lab(51.13, -7.26, -19.74)
CIE-LCH	lch(51.13, 21.03, 249.80°)
OKLab	oklab(57.57% -0.035 -0.0547)
OKLCH	oklch(57.57% 0.065 237.4)
XYZ	xyz(17.0710, 19.3831, 33.8457)
Luminance	0.1938 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537F9B #9B6F53

analogous

#539B93 #537F9B #535B9B

triadic

#537F9B #9B537F #7F9B53

tetradic

#537F9B #93539B #9B6F53 #5B9B53

square

#537F9B #93539B #9B6F53 #5B9B53

split-complementary

#537F9B #9B535B #9B9353

monochromatic

#283E4B #3E5E73 #537F9B #769DB5 #9EB9CB

Accessibility & contrast

On white

4.31

#537F9B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#537F9B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537F9B

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537F9B	#FFFFFF	#000000	##000000
##537F9B	1.00	4.31	4.88	4.88
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#727E9C

Deuteranopia (green-blind)

#68769B

Tritanopia (blue-blind)

#338688

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #537f9b;
/* rgb */ color: rgb(83, 127, 155);
/* oklch */ color: oklch(57.6% 0.065 237.4);

Tailwind

colors: {
  custom: {
    50: '#87a4b8',
    500: '#537f9b',
    950: '#000000',
  },
}

SCSS

$custom: #537f9b;
$custom-light: #87a4b8;
$custom-dark: #000000;

JSON

{
  "hex": "#537f9b",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 155
  },
  "hsl": {
    "h": 203.333,
    "s": 30.252,
    "l": 46.667
  },
  "oklch": {
    "l": 0.57565,
    "c": 0.06496,
    "h": 237.4
  },
  "luminance": 0.19384
}

Semantic roles & 50–950 ramp

primary

#537F9B

secondary

#B8A192

accent

#8961C6

background

#F8FAFB

surface

#F0F4F6

border

#CBCED0

text

#0C0F11

muted

#7D7F80

Preview Lab

Preview with #537F9B

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

Preview Lab → · Contrast checker → · Palette generator →