#537DAB#537DAB

#537DAB is a mid, moderate cyan. Relative luminance 0.194; OKLCH L 57.8% C 0.085 H 251.6°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#537DAB
RGB	rgb(83, 125, 171)
HSL	hsl(211, 35%, 50%)
HSV	hsv(211, 51%, 67%)
CMYK	cmyk(51.5%, 26.9%, 0%, 32.9%)
CIE-LAB	lab(51.20, -1.22, -28.92)
CIE-LCH	lch(51.20, 28.95, 267.58°)
OKLab	oklab(57.84% -0.027 -0.081)
OKLCH	oklch(57.84% 0.085 251.6)
XYZ	xyz(18.2490, 19.4451, 41.3118)
Luminance	0.1945 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DAB #AB8153

analogous

#53A9AB #537DAB #5553AB

triadic

#537DAB #AB537D #7DAB53

tetradic

#537DAB #AB53A9 #AB8153 #53AB55

square

#537DAB #AB53A9 #AB8153 #53AB55

split-complementary

#537DAB #AB5553 #A9AB53

monochromatic

#2B4159 #3F5F82 #537DAB #7C9CBF #A5BBD3

Accessibility & contrast

On white

4.30

#537DAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#537DAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DAB

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DAB	#FFFFFF	#000000	##000000
##537DAB	1.00	4.30	4.89	4.89
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7FAD

Deuteranopia (green-blind)

#5F76AA

Tritanopia (blue-blind)

#27878D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #537dab;
/* rgb */ color: rgb(83, 125, 171);
/* oklch */ color: oklch(57.8% 0.085 251.6);

Tailwind

colors: {
  custom: {
    50: '#89a2c4',
    500: '#537dab',
    950: '#000000',
  },
}

SCSS

$custom: #537dab;
$custom-light: #89a2c4;
$custom-dark: #000000;

JSON

{
  "hex": "#537dab",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 171
  },
  "hsl": {
    "h": 211.364,
    "s": 34.646,
    "l": 49.804
  },
  "oklch": {
    "l": 0.5784,
    "c": 0.08534,
    "h": 251.6
  },
  "luminance": 0.19447
}

Semantic roles & 50–950 ramp

primary

#537DAB

secondary

#C1AE99

accent

#965DCB

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0F12

muted

#7D7E81

Preview Lab

Preview with #537DAB

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

Preview Lab → · Contrast checker → · Palette generator →