#3583BC#3583BC

#3583BC is a mid, moderate cyan. Relative luminance 0.206; OKLCH L 58.8% C 0.116 H 243.9°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3583BC
RGB	rgb(53, 131, 188)
HSL	hsl(205, 56%, 47%)
HSV	hsv(205, 72%, 74%)
CMYK	cmyk(71.8%, 30.3%, 0%, 26.3%)
CIE-LAB	lab(52.53, -4.79, -36.72)
CIE-LCH	lch(52.53, 37.04, 262.56°)
OKLab	oklab(58.8% -0.0509 -0.1039)
OKLCH	oklch(58.8% 0.116 243.9)
XYZ	xyz(18.6581, 20.6182, 50.5636)
Luminance	0.2062 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3583BC #BC6E35

analogous

#35BCB2 #3583BC #3540BC

triadic

#3583BC #BC3583 #83BC35

tetradic

#3583BC #B235BC #BC6E35 #40BC35

square

#3583BC #B235BC #BC6E35 #40BC35

split-complementary

#3583BC #BC3540 #BCB235

monochromatic

#1A405D #28628C #3583BC #5DA0D1 #8DBCDF

Accessibility & contrast

On white

4.10

#3583BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#3583BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3583BC

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3583BC	#FFFFFF	#000000	##000000
##3583BC	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6984BF

Deuteranopia (green-blind)

#5678BB

Tritanopia (blue-blind)

#009197

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3583bc;
/* rgb */ color: rgb(53, 131, 188);
/* oklch */ color: oklch(58.8% 0.116 243.9);

Tailwind

colors: {
  custom: {
    50: '#7da6d0',
    500: '#3583bc',
    950: '#000000',
  },
}

SCSS

$custom: #3583bc;
$custom-light: #7da6d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3583bc",
  "rgb": {
    "r": 53,
    "g": 131,
    "b": 188
  },
  "hsl": {
    "h": 205.333,
    "s": 56.017,
    "l": 47.255
  },
  "oklch": {
    "l": 0.58804,
    "c": 0.11569,
    "h": 243.9
  },
  "luminance": 0.2062
}

Semantic roles & 50–950 ramp

primary

#3583BC

secondary

#C9A184

accent

#8848DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3583BC

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

Preview Lab → · Contrast checker → · Palette generator →