#536BB1#536BB1

#536BB1 is a mid, moderate blue. Relative luminance 0.155; OKLCH L 54.2% C 0.113 H 268.2°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#536BB1
RGB	rgb(83, 107, 177)
HSL	hsl(225, 38%, 51%)
HSV	hsv(225, 53%, 69%)
CMYK	cmyk(53.1%, 39.5%, 0%, 30.6%)
CIE-LAB	lab(46.35, 11.63, -40.03)
CIE-LCH	lch(46.35, 41.68, 286.20°)
OKLab	oklab(54.16% -0.0036 -0.1133)
OKLCH	oklch(54.16% 0.113 268.2)
XYZ	xyz(16.7582, 15.5275, 43.7005)
Luminance	0.1553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#536BB1 #B19953

analogous

#539AB1 #536BB1 #6A53B1

triadic

#536BB1 #B1536B #6BB153

tetradic

#536BB1 #B1539A #B19953 #53B16A

square

#536BB1 #B1539A #B19953 #53B16A

split-complementary

#536BB1 #B16A53 #9AB153

monochromatic

#2B385F #3E5189 #536BB1 #7D8FC4 #A7B3D7

Accessibility & contrast

On white

5.11

#536BB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#536BB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #536BB1

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##536BB1	#FFFFFF	#000000	##FFFFFF
##536BB1	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F72B4

Deuteranopia (green-blind)

#446AAF

Tritanopia (blue-blind)

#257A85

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #536bb1;
/* rgb */ color: rgb(83, 107, 177);
/* oklch */ color: oklch(54.2% 0.113 268.2);

Tailwind

colors: {
  custom: {
    50: '#8a95c8',
    500: '#536bb1',
    950: '#000000',
  },
}

SCSS

$custom: #536bb1;
$custom-light: #8a95c8;
$custom-dark: #000000;

JSON

{
  "hex": "#536bb1",
  "rgb": {
    "r": 83,
    "g": 107,
    "b": 177
  },
  "hsl": {
    "h": 224.681,
    "s": 37.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.54156,
    "c": 0.1134,
    "h": 268.2
  },
  "luminance": 0.15529
}

Semantic roles & 50–950 ramp

primary

#536BB1

secondary

#C5BA9B

accent

#B05ACE

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #536BB1

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

Preview Lab → · Contrast checker → · Palette generator →