#3581BD#3581BD

#3581BD is a mid, moderate cyan. Relative luminance 0.201; OKLCH L 58.4% C 0.119 H 245.8°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#3581BD
RGB	rgb(53, 129, 189)
HSL	hsl(206, 56%, 47%)
HSV	hsv(206, 72%, 74%)
CMYK	cmyk(72%, 31.7%, 0%, 25.9%)
CIE-LAB	lab(51.98, -3.26, -38.15)
CIE-LCH	lch(51.98, 38.29, 265.11°)
OKLab	oklab(58.39% -0.0486 -0.1081)
OKLCH	oklch(58.39% 0.119 245.8)
XYZ	xyz(18.5003, 20.1295, 51.0446)
Luminance	0.2013 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3581BD #BD7135

analogous

#35BDB5 #3581BD #353DBD

triadic

#3581BD #BD3581 #81BD35

tetradic

#3581BD #B535BD #BD7135 #3DBD35

square

#3581BD #B535BD #BD7135 #3DBD35

split-complementary

#3581BD #BD353D #BDB535

monochromatic

#1A405D #28608D #3581BD #5D9ED2 #8DBBDF

Accessibility & contrast

On white

4.18

#3581BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#3581BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3581BD

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3581BD	#FFFFFF	#000000	##000000
##3581BD	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6683C0

Deuteranopia (green-blind)

#5376BC

Tritanopia (blue-blind)

#008F96

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3581bd;
/* rgb */ color: rgb(53, 129, 189);
/* oklch */ color: oklch(58.4% 0.119 245.8);

Tailwind

colors: {
  custom: {
    50: '#7da5d1',
    500: '#3581bd',
    950: '#000000',
  },
}

SCSS

$custom: #3581bd;
$custom-light: #7da5d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3581bd",
  "rgb": {
    "r": 53,
    "g": 129,
    "b": 189
  },
  "hsl": {
    "h": 206.471,
    "s": 56.198,
    "l": 47.451
  },
  "oklch": {
    "l": 0.58389,
    "c": 0.11853,
    "h": 245.8
  },
  "luminance": 0.20132
}

Semantic roles & 50–950 ramp

primary

#3581BD

secondary

#CAA384

accent

#8B48DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3581BD

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

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