#537ECC#537ECC

#537ECC is a mid, vivid blue. Relative luminance 0.211; OKLCH L 59.8% C 0.129 H 261.5°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#537ECC
RGB	rgb(83, 126, 204)
HSL	hsl(219, 54%, 56%)
HSV	hsv(219, 59%, 80%)
CMYK	cmyk(59.3%, 38.2%, 0%, 20%)
CIE-LAB	lab(53.08, 8.88, -44.90)
CIE-LCH	lch(53.08, 45.77, 281.19°)
OKLab	oklab(59.83% -0.0191 -0.1274)
OKLCH	oklch(59.83% 0.129 261.5)
XYZ	xyz(21.9234, 21.1185, 60.0360)
Luminance	0.2112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537ECC #CCA153

analogous

#53BBCC #537ECC #6553CC

triadic

#537ECC #CC537E #7ECC53

tetradic

#537ECC #CC53BB #CCA153 #53CC65

square

#537ECC #CC53BB #CCA153 #53CC65

split-complementary

#537ECC #CC6553 #BBCC53

monochromatic

#26457F #345FAE #537ECC #82A1DA #B1C5E8

Accessibility & contrast

On white

4.02

#537ECC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#537ECC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537ECC

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537ECC	#FFFFFF	#000000	##000000
##537ECC	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D85CF

Deuteranopia (green-blind)

#4D7ACA

Tritanopia (blue-blind)

#008F9B

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537ecc;
/* rgb */ color: rgb(83, 126, 204);
/* oklch */ color: oklch(59.8% 0.129 261.5);

Tailwind

colors: {
  custom: {
    50: '#8da3dc',
    500: '#537ecc',
    950: '#000000',
  },
}

SCSS

$custom: #537ecc;
$custom-light: #8da3dc;
$custom-dark: #000000;

JSON

{
  "hex": "#537ecc",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 204
  },
  "hsl": {
    "h": 218.678,
    "s": 54.26,
    "l": 56.275
  },
  "oklch": {
    "l": 0.59825,
    "c": 0.12883,
    "h": 261.5
  },
  "luminance": 0.2112
}

Semantic roles & 50–950 ramp

primary

#537ECC

secondary

#D6C5A4

accent

#A94ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #537ECC

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

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