#3591BD#3591BD

#3591BD is a light, moderate cyan. Relative luminance 0.247; OKLCH L 62.2% C 0.108 H 233.2°. Best body text is #000000 at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#3591BD
RGB	rgb(53, 145, 189)
HSL	hsl(199, 56%, 47%)
HSV	hsv(199, 72%, 74%)
CMYK	cmyk(72%, 23.3%, 0%, 25.9%)
CIE-LAB	lab(56.76, -12.44, -30.68)
CIE-LCH	lch(56.76, 33.11, 247.93°)
OKLab	oklab(62.18% -0.0644 -0.0863)
OKLCH	oklch(62.18% 0.108 233.2)
XYZ	xyz(20.7752, 24.6794, 51.8029)
Luminance	0.2468 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3591BD #BD6135

analogous

#35BDA5 #3591BD #354DBD

triadic

#3591BD #BD3591 #91BD35

tetradic

#3591BD #A535BD #BD6135 #4DBD35

square

#3591BD #A535BD #BD6135 #4DBD35

split-complementary

#3591BD #BD354D #BDA535

monochromatic

#1A485D #286C8D #3591BD #5DACD2 #8DC5DF

Accessibility & contrast

On white

3.54

#3591BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.94

#3591BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3591BD

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3591BD	#FFFFFF	#000000	##000000
##3591BD	1.00	3.54	5.94	5.94
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.94	21.00	1.00	1.00
##000000	5.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B90BF

Deuteranopia (green-blind)

#6982BC

Tritanopia (blue-blind)

#009DA0

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3591bd;
/* rgb */ color: rgb(53, 145, 189);
/* oklch */ color: oklch(62.2% 0.108 233.2);

Tailwind

colors: {
  custom: {
    50: '#7eb1d1',
    500: '#3591bd',
    950: '#000000',
  },
}

SCSS

$custom: #3591bd;
$custom-light: #7eb1d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3591bd",
  "rgb": {
    "r": 53,
    "g": 145,
    "b": 189
  },
  "hsl": {
    "h": 199.412,
    "s": 56.198,
    "l": 47.451
  },
  "oklch": {
    "l": 0.62177,
    "c": 0.10767,
    "h": 233.2
  },
  "luminance": 0.24682
}

Semantic roles & 50–950 ramp

primary

#3591BD

secondary

#CA9B84

accent

#7948DF

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3591BD

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

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