#537DD7#537DD7

#537DD7 is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.3% C 0.145 H 263.8°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#537DD7
RGB	rgb(83, 125, 215)
HSL	hsl(221, 62%, 58%)
HSV	hsv(221, 61%, 84%)
CMYK	cmyk(61.4%, 41.9%, 0%, 15.7%)
CIE-LAB	lab(53.40, 13.19, -50.62)
CIE-LCH	lch(53.40, 52.31, 284.60°)
OKLab	oklab(60.26% -0.0158 -0.1442)
OKLCH	oklch(60.26% 0.145 263.8)
XYZ	xyz(23.1624, 21.4105, 67.1888)
Luminance	0.2141 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DD7 #D7AD53

analogous

#53BFD7 #537DD7 #6B53D7

triadic

#537DD7 #D7537D #7DD753

tetradic

#537DD7 #D753BF #D7AD53 #53D76B

square

#537DD7 #D753BF #D7AD53 #53D76B

split-complementary

#537DD7 #D76B53 #BFD753

monochromatic

#21448E #2D5CC0 #537DD7 #85A3E3 #B6C8EE

Accessibility & contrast

On white

3.98

#537DD7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#537DD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DD7

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DD7	#FFFFFF	#000000	##000000
##537DD7	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5586DA

Deuteranopia (green-blind)

#417AD5

Tritanopia (blue-blind)

#00919F

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #537dd7;
/* rgb */ color: rgb(83, 125, 215);
/* oklch */ color: oklch(60.3% 0.145 263.8);

Tailwind

colors: {
  custom: {
    50: '#8fa2e4',
    500: '#537dd7',
    950: '#000000',
  },
}

SCSS

$custom: #537dd7;
$custom-light: #8fa2e4;
$custom-dark: #000000;

JSON

{
  "hex": "#537dd7",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 215
  },
  "hsl": {
    "h": 220.909,
    "s": 62.264,
    "l": 58.431
  },
  "oklch": {
    "l": 0.60263,
    "c": 0.14505,
    "h": 263.8
  },
  "luminance": 0.21413
}

Semantic roles & 50–950 ramp

primary

#537DD7

secondary

#DDCCA9

accent

#B242E5

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0F15

muted

#7E7E84

Preview Lab

Preview with #537DD7

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

Preview Lab → · Contrast checker → · Palette generator →