#536FBB#536FBB

#536FBB is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.6% C 0.123 H 267.1°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#536FBB
RGB	rgb(83, 111, 187)
HSL	hsl(224, 43%, 53%)
HSV	hsv(224, 56%, 73%)
CMYK	cmyk(55.6%, 40.6%, 0%, 26.7%)
CIE-LAB	lab(48.00, 12.43, -43.22)
CIE-LCH	lch(48.00, 44.97, 286.04°)
OKLab	oklab(55.6% -0.0061 -0.1226)
OKLCH	oklch(55.6% 0.123 267.1)
XYZ	xyz(18.2184, 16.7944, 49.2857)
Luminance	0.1680 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#536FBB #BB9F53

analogous

#53A3BB #536FBB #6B53BB

triadic

#536FBB #BB536F #6FBB53

tetradic

#536FBB #BB53A3 #BB9F53 #53BB6B

square

#536FBB #BB53A3 #BB9F53 #53BB6B

split-complementary

#536FBB #BB6B53 #A3BB53

monochromatic

#2A3B6A #3B5496 #536FBB #7F94CC #ABB8DE

Accessibility & contrast

On white

4.82

#536FBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#536FBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #536FBB

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##536FBB	#FFFFFF	#000000	##FFFFFF
##536FBB	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F77BE

Deuteranopia (green-blind)

#426EB9

Tritanopia (blue-blind)

#15808C

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #536fbb;
/* rgb */ color: rgb(83, 111, 187);
/* oklch */ color: oklch(55.6% 0.123 267.1);

Tailwind

colors: {
  custom: {
    50: '#8b98d0',
    500: '#536fbb',
    950: '#000000',
  },
}

SCSS

$custom: #536fbb;
$custom-light: #8b98d0;
$custom-dark: #000000;

JSON

{
  "hex": "#536fbb",
  "rgb": {
    "r": 83,
    "g": 111,
    "b": 187
  },
  "hsl": {
    "h": 223.846,
    "s": 43.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.55604,
    "c": 0.12278,
    "h": 267.1
  },
  "luminance": 0.16796
}

Semantic roles & 50–950 ramp

primary

#536FBB

secondary

#CBBF9E

accent

#B155D3

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #536FBB

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

Preview Lab → · Contrast checker → · Palette generator →