#537ECB#537ECB

#537ECB is a mid, vivid blue. Relative luminance 0.211; OKLCH L 59.8% C 0.127 H 261.3°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#537ECB
RGB	rgb(83, 126, 203)
HSL	hsl(219, 54%, 56%)
HSV	hsv(219, 59%, 80%)
CMYK	cmyk(59.1%, 37.9%, 0%, 20.4%)
CIE-LAB	lab(53.03, 8.55, -44.41)
CIE-LCH	lch(53.03, 45.23, 280.90°)
OKLab	oklab(59.77% -0.0193 -0.126)
OKLCH	oklch(59.77% 0.127 261.3)
XYZ	xyz(21.8039, 21.0706, 59.4064)
Luminance	0.2107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537ECB #CBA053

analogous

#53BACB #537ECB #6453CB

triadic

#537ECB #CB537E #7ECB53

tetradic

#537ECB #CB53BA #CBA053 #53CB64

square

#537ECB #CB53BA #CBA053 #53CB64

split-complementary

#537ECB #CB6453 #BACB53

monochromatic

#26457E #345FAD #537ECB #82A1D9 #B1C4E7

Accessibility & contrast

On white

4.03

#537ECB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#537ECB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537ECB

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537ECB	#FFFFFF	#000000	##000000
##537ECB	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D85CE

Deuteranopia (green-blind)

#4D79C9

Tritanopia (blue-blind)

#008F9B

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537ecb;
/* rgb */ color: rgb(83, 126, 203);
/* oklch */ color: oklch(59.8% 0.127 261.3);

Tailwind

colors: {
  custom: {
    50: '#8da3db',
    500: '#537ecb',
    950: '#000000',
  },
}

SCSS

$custom: #537ecb;
$custom-light: #8da3db;
$custom-dark: #000000;

JSON

{
  "hex": "#537ecb",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 203
  },
  "hsl": {
    "h": 218.5,
    "s": 53.571,
    "l": 56.078
  },
  "oklch": {
    "l": 0.59767,
    "c": 0.12746,
    "h": 261.3
  },
  "luminance": 0.21073
}

Semantic roles & 50–950 ramp

primary

#537ECB

secondary

#D6C4A4

accent

#A94BDD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #537ECB

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

Preview Lab → · Contrast checker → · Palette generator →