#537DC9#537DC9

#537DC9 is a mid, vivid blue. Relative luminance 0.207; OKLCH L 59.4% C 0.126 H 261.4°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#537DC9
RGB	rgb(83, 125, 201)
HSL	hsl(219, 52%, 56%)
HSV	hsv(219, 59%, 79%)
CMYK	cmyk(58.7%, 37.8%, 0%, 21.2%)
CIE-LAB	lab(52.64, 8.49, -43.88)
CIE-LCH	lch(52.64, 44.70, 280.95°)
OKLab	oklab(59.44% -0.0187 -0.1244)
OKLCH	oklch(59.44% 0.126 261.4)
XYZ	xyz(21.4399, 20.7215, 58.1168)
Luminance	0.2072 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DC9 #C99F53

analogous

#53B8C9 #537DC9 #6453C9

triadic

#537DC9 #C9537D #7DC953

tetradic

#537DC9 #C953B8 #C99F53 #53C964

square

#537DC9 #C953B8 #C99F53 #53C964

split-complementary

#537DC9 #C96453 #B8C953

monochromatic

#27457B #355FAA #537DC9 #82A0D8 #B0C3E6

Accessibility & contrast

On white

4.08

#537DC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#537DC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DC9

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DC9	#FFFFFF	#000000	##000000
##537DC9	1.00	4.08	5.14	5.14
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D84CC

Deuteranopia (green-blind)

#4D79C7

Tritanopia (blue-blind)

#008E99

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537dc9;
/* rgb */ color: rgb(83, 125, 201);
/* oklch */ color: oklch(59.4% 0.126 261.4);

Tailwind

colors: {
  custom: {
    50: '#8da2da',
    500: '#537dc9',
    950: '#000000',
  },
}

SCSS

$custom: #537dc9;
$custom-light: #8da2da;
$custom-dark: #000000;

JSON

{
  "hex": "#537dc9",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 201
  },
  "hsl": {
    "h": 218.644,
    "s": 52.212,
    "l": 55.686
  },
  "oklch": {
    "l": 0.59436,
    "c": 0.12584,
    "h": 261.4
  },
  "luminance": 0.20723
}

Semantic roles & 50–950 ramp

primary

#537DC9

secondary

#D4C3A3

accent

#A94CDC

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #537DC9

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

Preview Lab → · Contrast checker → · Palette generator →