#537FB0#537FB0

#537FB0 is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.5% C 0.090 H 252.0°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#537FB0
RGB	rgb(83, 127, 176)
HSL	hsl(212, 37%, 51%)
HSV	hsv(212, 53%, 69%)
CMYK	cmyk(52.8%, 27.8%, 0%, 31%)
CIE-LAB	lab(52.01, -0.83, -30.56)
CIE-LCH	lch(52.01, 30.57, 268.44°)
OKLab	oklab(58.54% -0.0278 -0.0857)
OKLCH	oklch(58.54% 0.09 252)
XYZ	xyz(18.9904, 20.1509, 43.9547)
Luminance	0.2015 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FB0 #B08453

analogous

#53ADB0 #537FB0 #5553B0

triadic

#537FB0 #B0537F #7FB053

tetradic

#537FB0 #B053AD #B08453 #53B055

square

#537FB0 #B053AD #B08453 #53B055

split-complementary

#537FB0 #B05553 #ADB053

monochromatic

#2B435E #3E6188 #537FB0 #7D9EC3 #A7BDD7

Accessibility & contrast

On white

4.17

#537FB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#537FB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FB0

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FB0	#FFFFFF	#000000	##000000
##537FB0	1.00	4.17	5.03	5.03
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B81B2

Deuteranopia (green-blind)

#5F78AF

Tritanopia (blue-blind)

#208A90

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #537fb0;
/* rgb */ color: rgb(83, 127, 176);
/* oklch */ color: oklch(58.5% 0.090 252.0);

Tailwind

colors: {
  custom: {
    50: '#89a3c7',
    500: '#537fb0',
    950: '#000000',
  },
}

SCSS

$custom: #537fb0;
$custom-light: #89a3c7;
$custom-dark: #000000;

JSON

{
  "hex": "#537fb0",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 176
  },
  "hsl": {
    "h": 211.613,
    "s": 37.052,
    "l": 50.784
  },
  "oklch": {
    "l": 0.58544,
    "c": 0.09008,
    "h": 252
  },
  "luminance": 0.20152
}

Semantic roles & 50–950 ramp

primary

#537FB0

secondary

#C4B19B

accent

#975BCD

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #537FB0

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

Preview Lab → · Contrast checker → · Palette generator →