#3581E0#3581E0

#3581E0 is a mid, vivid cyan. Relative luminance 0.218; OKLCH L 60.5% C 0.162 H 255.8°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#3581E0
RGB	rgb(53, 129, 224)
HSL	hsl(213, 73%, 54%)
HSV	hsv(213, 76%, 88%)
CMYK	cmyk(76.3%, 42.4%, 0%, 12.2%)
CIE-LAB	lab(53.85, 9.44, -55.02)
CIE-LCH	lch(53.85, 55.83, 279.73°)
OKLab	oklab(60.46% -0.0399 -0.1575)
OKLCH	oklch(60.46% 0.162 255.8)
XYZ	xyz(22.7680, 21.8366, 73.5215)
Luminance	0.2184 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3581E0 #E09435

analogous

#35D7E0 #3581E0 #3E35E0

triadic

#3581E0 #E03581 #81E035

tetradic

#3581E0 #E035D7 #E09435 #35E03E

square

#3581E0 #E035D7 #E09435 #35E03E

split-complementary

#3581E0 #E03E35 #D7E035

monochromatic

#154786 #1D63BB #3581E0 #6AA2E8 #9FC3F0

Accessibility & contrast

On white

3.91

#3581E0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#3581E0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3581E0

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3581E0	#FFFFFF	#000000	##000000
##3581E0	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5289E4

Deuteranopia (green-blind)

#327ADE

Tritanopia (blue-blind)

#0097A5

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3581e0;
/* rgb */ color: rgb(53, 129, 224);
/* oklch */ color: oklch(60.5% 0.162 255.8);

Tailwind

colors: {
  custom: {
    50: '#84a5ea',
    500: '#3581e0',
    950: '#000000',
  },
}

SCSS

$custom: #3581e0;
$custom-light: #84a5ea;
$custom-dark: #000000;

JSON

{
  "hex": "#3581e0",
  "rgb": {
    "r": 53,
    "g": 129,
    "b": 224
  },
  "hsl": {
    "h": 213.333,
    "s": 73.391,
    "l": 54.314
  },
  "oklch": {
    "l": 0.6046,
    "c": 0.16249,
    "h": 255.8
  },
  "luminance": 0.21839
}

Semantic roles & 50–950 ramp

primary

#3581E0

secondary

#DDBC94

accent

#9E38F0

background

#F8FAFE

surface

#F0F4FD

border

#CBCED5

text

#0C0F16

muted

#7D7F84

Preview Lab

Preview with #3581E0

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

Preview Lab → · Contrast checker → · Palette generator →