#3583E0#3583E0

#3583E0 is a mid, vivid cyan. Relative luminance 0.224; OKLCH L 60.9% C 0.160 H 255.0°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#3583E0
RGB	rgb(53, 131, 224)
HSL	hsl(213, 73%, 54%)
HSV	hsv(213, 76%, 88%)
CMYK	cmyk(76.3%, 41.5%, 0%, 12.2%)
CIE-LAB	lab(54.42, 8.21, -54.13)
CIE-LCH	lch(54.42, 54.74, 278.63°)
OKLab	oklab(60.9% -0.0416 -0.1548)
OKLCH	oklch(60.9% 0.16 255)
XYZ	xyz(23.0340, 22.3686, 73.6102)
Luminance	0.2237 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3583E0 #E09235

analogous

#35D8E0 #3583E0 #3D35E0

triadic

#3583E0 #E03583 #83E035

tetradic

#3583E0 #E035D8 #E09235 #35E03D

square

#3583E0 #E035D8 #E09235 #35E03D

split-complementary

#3583E0 #E03D35 #D8E035

monochromatic

#154886 #1D65BB #3583E0 #6AA4E8 #9FC4F0

Accessibility & contrast

On white

3.84

#3583E0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#3583E0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3583E0

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3583E0	#FFFFFF	#000000	##000000
##3583E0	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#558BE4

Deuteranopia (green-blind)

#377BDE

Tritanopia (blue-blind)

#0099A6

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3583e0;
/* rgb */ color: rgb(53, 131, 224);
/* oklch */ color: oklch(60.9% 0.160 255.0);

Tailwind

colors: {
  custom: {
    50: '#84a6ea',
    500: '#3583e0',
    950: '#000000',
  },
}

SCSS

$custom: #3583e0;
$custom-light: #84a6ea;
$custom-dark: #000000;

JSON

{
  "hex": "#3583e0",
  "rgb": {
    "r": 53,
    "g": 131,
    "b": 224
  },
  "hsl": {
    "h": 212.632,
    "s": 73.391,
    "l": 54.314
  },
  "oklch": {
    "l": 0.60897,
    "c": 0.16032,
    "h": 255
  },
  "luminance": 0.22371
}

Semantic roles & 50–950 ramp

primary

#3583E0

secondary

#DDBC94

accent

#9C38F0

background

#F8FAFE

surface

#F0F4FD

border

#CBCED5

text

#0C0F16

muted

#7D7F84

Preview Lab

Preview with #3583E0

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

Preview Lab → · Contrast checker → · Palette generator →