#537B8A#537B8A

#537B8A is a mid, muted cyan. Relative luminance 0.178; OKLCH L 55.9% C 0.050 H 223.4°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX#537B8A
RGBrgb(83, 123, 138)
HSLhsl(196, 25%, 43%)
HSVhsv(196, 40%, 54%)
CMYKcmyk(39.9%, 10.9%, 0%, 45.9%)
CIE-LABlab(49.30, -9.85, -12.57)
CIE-LCHlch(49.30, 15.97, 231.90°)
OKLaboklab(55.9% -0.0365 -0.0345)
OKLCHoklch(55.9% 0.05 223.4)
XYZxyz(15.2361, 17.8389, 26.6802)
Luminance0.1784 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#537B8A #8A6253
analogous
#538A7D #537B8A #535F8A
triadic
#537B8A #8A537B #7B8A53
tetradic
#537B8A #7D538A #8A6253 #5F8A53
square
#537B8A #7D538A #8A6253 #5F8A53
split-complementary
#537B8A #8A535F #8A7D53
monochromatic
#25373E #3C5964 #537B8A #719AA9 #97B5C0

Accessibility & contrast

On white

4.60
#537B8A on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.57
#537B8A on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #537B8A
4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##537B8A#FFFFFF#000000##FFFFFF
##537B8A1.004.604.574.60
#FFFFFF4.601.0021.001.00
#0000004.5721.001.0021.00
##FFFFFF4.601.0021.001.00

Color blindness preview

Protanopia (red-blind)
#72798B
Deuteranopia (green-blind)
#6A728A
Tritanopia (blue-blind)
#3E8080
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #537b8a;
/* rgb */ color: rgb(83, 123, 138);
/* oklch */ color: oklch(55.9% 0.050 223.4);
Tailwind
colors: {
  custom: {
    50: '#86a1ac',
    500: '#537b8a',
    950: '#000000',
  },
}
SCSS
$custom: #537b8a;
$custom-light: #86a1ac;
$custom-dark: #000000;
JSON
{
  "hex": "#537b8a",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 138
  },
  "hsl": {
    "h": 196.364,
    "s": 24.887,
    "l": 43.333
  },
  "oklch": {
    "l": 0.55904,
    "c": 0.05023,
    "h": 223.4
  },
  "luminance": 0.1784
}

Semantic roles & 50–950 ramp

primary
#537B8A
secondary
#AE958B
accent
#7F66C1
background
#F8F9FA
surface
#EFF2F4
border
#CACCCE
text
#0B0E10
muted
#7C7E7F

Preview Lab

Preview with #537B8A

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

Preview Lab → · Contrast checker → · Palette generator →

#537B8A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva