#537BBC#537BBC

#537BBC is a mid, moderate blue. Relative luminance 0.196; OKLCH L 58.3% C 0.110 H 259.7°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#537BBC
RGB	rgb(83, 123, 188)
HSL	hsl(217, 44%, 53%)
HSV	hsv(217, 56%, 74%)
CMYK	cmyk(55.9%, 34.6%, 0%, 26.3%)
CIE-LAB	lab(51.42, 5.41, -38.38)
CIE-LCH	lch(51.42, 38.76, 278.03°)
OKLab	oklab(58.27% -0.0197 -0.1084)
OKLCH	oklch(58.27% 0.11 259.7)
XYZ	xyz(19.7242, 19.6342, 50.3176)
Luminance	0.1964 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BBC #BC9453

analogous

#53AFBC #537BBC #5F53BC

triadic

#537BBC #BC537B #7BBC53

tetradic

#537BBC #BC53AF #BC9453 #53BC5F

square

#537BBC #BC53AF #BC9453 #53BC5F

split-complementary

#537BBC #BC5F53 #AFBC53

monochromatic

#2A436B #3B5E97 #537BBC #7F9DCD #ABBFDE

Accessibility & contrast

On white

4.26

#537BBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#537BBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BBC

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BBC	#FFFFFF	#000000	##000000
##537BBC	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6180BF

Deuteranopia (green-blind)

#5476BB

Tritanopia (blue-blind)

#0B8993

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #537bbc;
/* rgb */ color: rgb(83, 123, 188);
/* oklch */ color: oklch(58.3% 0.110 259.7);

Tailwind

colors: {
  custom: {
    50: '#8ba0d0',
    500: '#537bbc',
    950: '#000000',
  },
}

SCSS

$custom: #537bbc;
$custom-light: #8ba0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#537bbc",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 188
  },
  "hsl": {
    "h": 217.143,
    "s": 43.933,
    "l": 53.137
  },
  "oklch": {
    "l": 0.58271,
    "c": 0.11018,
    "h": 259.7
  },
  "luminance": 0.19636
}

Semantic roles & 50–950 ramp

primary

#537BBC

secondary

#CCBB9F

accent

#A354D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #537BBC

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

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