#537BBD#537BBD

#537BBD is a mid, moderate blue. Relative luminance 0.197; OKLCH L 58.3% C 0.112 H 260.0°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#537BBD
RGB	rgb(83, 123, 189)
HSL	hsl(217, 45%, 53%)
HSV	hsv(217, 56%, 74%)
CMYK	cmyk(56.1%, 34.9%, 0%, 25.9%)
CIE-LAB	lab(51.47, 5.74, -38.88)
CIE-LCH	lch(51.47, 39.30, 278.40°)
OKLab	oklab(58.33% -0.0194 -0.1098)
OKLCH	oklch(58.33% 0.112 260)
XYZ	xyz(19.8324, 19.6775, 50.8873)
Luminance	0.1968 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BBD #BD9553

analogous

#53B0BD #537BBD #6053BD

triadic

#537BBD #BD537B #7BBD53

tetradic

#537BBD #BD53B0 #BD9553 #53BD60

square

#537BBD #BD53B0 #BD9553 #53BD60

split-complementary

#537BBD #BD6053 #B0BD53

monochromatic

#29436C #3A5E98 #537BBD #7F9DCE #ABBFDF

Accessibility & contrast

On white

4.25

#537BBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#537BBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BBD

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BBD	#FFFFFF	#000000	##000000
##537BBD	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)

#6080C0

Deuteranopia (green-blind)

#5376BC

Tritanopia (blue-blind)

#088A93

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #537bbd;
/* rgb */ color: rgb(83, 123, 189);
/* oklch */ color: oklch(58.3% 0.112 260.0);

Tailwind

colors: {
  custom: {
    50: '#8ba0d1',
    500: '#537bbd',
    950: '#000000',
  },
}

SCSS

$custom: #537bbd;
$custom-light: #8ba0d1;
$custom-dark: #000000;

JSON

{
  "hex": "#537bbd",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 189
  },
  "hsl": {
    "h": 217.358,
    "s": 44.538,
    "l": 53.333
  },
  "oklch": {
    "l": 0.58325,
    "c": 0.11155,
    "h": 260
  },
  "luminance": 0.19679
}

Semantic roles & 50–950 ramp

primary

#537BBD

secondary

#CDBB9F

accent

#A454D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #537BBD

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

Preview Lab → · Contrast checker → · Palette generator →