#3584C9#3584C9

#3584C9 is a mid, vivid cyan. Relative luminance 0.215; OKLCH L 59.8% C 0.130 H 248.4°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#3584C9
RGB	rgb(53, 132, 201)
HSL	hsl(208, 58%, 50%)
HSV	hsv(208, 74%, 79%)
CMYK	cmyk(73.6%, 34.3%, 0%, 21.2%)
CIE-LAB	lab(53.46, -0.75, -42.66)
CIE-LCH	lch(53.46, 42.67, 269.00°)
OKLab	oklab(59.75% -0.048 -0.1212)
OKLCH	oklch(59.75% 0.13 248.4)
XYZ	xyz(20.2581, 21.4742, 58.3243)
Luminance	0.2148 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3584C9 #C97A35

analogous

#35C9C4 #3584C9 #353AC9

triadic

#3584C9 #C93584 #84C935

tetradic

#3584C9 #C435C9 #C97A35 #3AC935

square

#3584C9 #C435C9 #C97A35 #3AC935

split-complementary

#3584C9 #C9353A #C9C435

monochromatic

#1B4468 #286499 #3584C9 #65A1D6 #95BFE3

Accessibility & contrast

On white

3.97

#3584C9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#3584C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3584C9

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3584C9	#FFFFFF	#000000	##000000
##3584C9	1.00	3.97	5.30	5.30
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6487CC

Deuteranopia (green-blind)

#4F79C8

Tritanopia (blue-blind)

#00949D

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3584c9;
/* rgb */ color: rgb(53, 132, 201);
/* oklch */ color: oklch(59.8% 0.130 248.4);

Tailwind

colors: {
  custom: {
    50: '#7fa7da',
    500: '#3584c9',
    950: '#000000',
  },
}

SCSS

$custom: #3584c9;
$custom-light: #7fa7da;
$custom-dark: #000000;

JSON

{
  "hex": "#3584c9",
  "rgb": {
    "r": 53,
    "g": 132,
    "b": 201
  },
  "hsl": {
    "h": 207.973,
    "s": 58.268,
    "l": 49.804
  },
  "oklch": {
    "l": 0.59751,
    "c": 0.13038,
    "h": 248.4
  },
  "luminance": 0.21476
}

Semantic roles & 50–950 ramp

primary

#3584C9

secondary

#CEAB8B

accent

#8F46E1

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0B0F15

muted

#7C7F83

Preview Lab

Preview with #3584C9

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

Preview Lab → · Contrast checker → · Palette generator →