#537ECD#537ECD

#537ECD is a mid, vivid blue. Relative luminance 0.212; OKLCH L 59.9% C 0.130 H 261.7°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#537ECD
RGB	rgb(83, 126, 205)
HSL	hsl(219, 55%, 56%)
HSV	hsv(219, 60%, 80%)
CMYK	cmyk(59.5%, 38.5%, 0%, 19.6%)
CIE-LAB	lab(53.13, 9.22, -45.38)
CIE-LCH	lch(53.13, 46.31, 281.48°)
OKLab	oklab(59.88% -0.0189 -0.1288)
OKLCH	oklch(59.88% 0.13 261.7)
XYZ	xyz(22.0438, 21.1666, 60.6697)
Luminance	0.2117 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537ECD #CDA253

analogous

#53BBCD #537ECD #6553CD

triadic

#537ECD #CD537E #7ECD53

tetradic

#537ECD #CD53BB #CDA253 #53CD65

square

#537ECD #CD53BB #CDA253 #53CD65

split-complementary

#537ECD #CD6553 #BBCD53

monochromatic

#254580 #335FB0 #537ECD #82A2DB #B2C5E9

Accessibility & contrast

On white

4.01

#537ECD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#537ECD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537ECD

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537ECD	#FFFFFF	#000000	##000000
##537ECD	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)

#5C85D0

Deuteranopia (green-blind)

#4C7ACB

Tritanopia (blue-blind)

#00909C

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537ecd;
/* rgb */ color: rgb(83, 126, 205);
/* oklch */ color: oklch(59.9% 0.130 261.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#537ecd",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 205
  },
  "hsl": {
    "h": 218.852,
    "s": 54.955,
    "l": 56.471
  },
  "oklch": {
    "l": 0.59882,
    "c": 0.1302,
    "h": 261.7
  },
  "luminance": 0.21168
}

Semantic roles & 50–950 ramp

primary

#537ECD

secondary

#D7C5A5

accent

#AA4ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #537ECD

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

Preview Lab → · Contrast checker → · Palette generator →