#537BBE#537BBE

#537BBE is a mid, moderate blue. Relative luminance 0.197; OKLCH L 58.4% C 0.113 H 260.2°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#537BBE
RGB	rgb(83, 123, 190)
HSL	hsl(218, 45%, 54%)
HSV	hsv(218, 56%, 75%)
CMYK	cmyk(56.3%, 35.3%, 0%, 25.5%)
CIE-LAB	lab(51.52, 6.07, -39.37)
CIE-LCH	lch(51.52, 39.84, 278.76°)
OKLab	oklab(58.38% -0.0191 -0.1113)
OKLCH	oklch(58.38% 0.113 260.2)
XYZ	xyz(19.9413, 19.7210, 51.4609)
Luminance	0.1972 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BBE #BE9653

analogous

#53B0BE #537BBE #6053BE

triadic

#537BBE #BE537B #7BBE53

tetradic

#537BBE #BE53B0 #BE9653 #53BE60

square

#537BBE #BE53B0 #BE9653 #53BE60

split-complementary

#537BBE #BE6053 #B0BE53

monochromatic

#29436D #3A5E9A #537BBE #7F9DCF #ACBFE0

Accessibility & contrast

On white

4.25

#537BBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#537BBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BBE

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BBE	#FFFFFF	#000000	##000000
##537BBE	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6080C1

Deuteranopia (green-blind)

#5276BD

Tritanopia (blue-blind)

#048A93

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #537bbe;
/* rgb */ color: rgb(83, 123, 190);
/* oklch */ color: oklch(58.4% 0.113 260.2);

Tailwind

colors: {
  custom: {
    50: '#8ba0d2',
    500: '#537bbe',
    950: '#000000',
  },
}

SCSS

$custom: #537bbe;
$custom-light: #8ba0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#537bbe",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 190
  },
  "hsl": {
    "h": 217.57,
    "s": 45.148,
    "l": 53.529
  },
  "oklch": {
    "l": 0.5838,
    "c": 0.11293,
    "h": 260.2
  },
  "luminance": 0.19723
}

Semantic roles & 50–950 ramp

primary

#537BBE

secondary

#CDBC9F

accent

#A453D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #537BBE

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

Preview Lab → · Contrast checker → · Palette generator →