#537DD2#537DD2

#537DD2 is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.0% C 0.138 H 263.0°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#537DD2
RGB	rgb(83, 125, 210)
HSL	hsl(220, 59%, 57%)
HSV	hsv(220, 60%, 82%)
CMYK	cmyk(60.5%, 40.5%, 0%, 17.6%)
CIE-LAB	lab(53.12, 11.50, -48.23)
CIE-LCH	lch(53.12, 49.59, 283.41°)
OKLab	oklab(59.96% -0.0168 -0.1372)
OKLCH	oklch(59.96% 0.138 263)
XYZ	xyz(22.5297, 21.1574, 63.8568)
Luminance	0.2116 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DD2 #D2A853

analogous

#53BDD2 #537DD2 #6853D2

triadic

#537DD2 #D2537D #7DD253

tetradic

#537DD2 #D253BD #D2A853 #53D268

square

#537DD2 #D253BD #D2A853 #53D268

split-complementary

#537DD2 #D26853 #BDD253

monochromatic

#234487 #305DB8 #537DD2 #84A2DF #B4C6EB

Accessibility & contrast

On white

4.01

#537DD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#537DD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DD2

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DD2	#FFFFFF	#000000	##000000
##537DD2	1.00	4.01	5.23	5.23
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5885D5

Deuteranopia (green-blind)

#4679D0

Tritanopia (blue-blind)

#00909D

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537dd2;
/* rgb */ color: rgb(83, 125, 210);
/* oklch */ color: oklch(60.0% 0.138 263.0);

Tailwind

colors: {
  custom: {
    50: '#8ea2e0',
    500: '#537dd2',
    950: '#000000',
  },
}

SCSS

$custom: #537dd2;
$custom-light: #8ea2e0;
$custom-dark: #000000;

JSON

{
  "hex": "#537dd2",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 210
  },
  "hsl": {
    "h": 220.157,
    "s": 58.525,
    "l": 57.451
  },
  "oklch": {
    "l": 0.59962,
    "c": 0.1382,
    "h": 263
  },
  "luminance": 0.21159
}

Semantic roles & 50–950 ramp

primary

#537DD2

secondary

#DAC9A7

accent

#AE46E2

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #537DD2

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

Preview Lab → · Contrast checker → · Palette generator →