#3591BC#3591BC

#3591BC is a light, moderate cyan. Relative luminance 0.246; OKLCH L 62.1% C 0.107 H 232.6°. Best body text is #000000 at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#3591BC
RGB	rgb(53, 145, 188)
HSL	hsl(199, 56%, 47%)
HSV	hsv(199, 72%, 74%)
CMYK	cmyk(71.8%, 22.9%, 0%, 26.3%)
CIE-LAB	lab(56.72, -12.78, -30.18)
CIE-LCH	lch(56.72, 32.77, 247.05°)
OKLab	oklab(62.13% -0.0648 -0.0848)
OKLCH	oklch(62.13% 0.107 232.6)
XYZ	xyz(20.6671, 24.6362, 51.2332)
Luminance	0.2464 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3591BC #BC6035

analogous

#35BCA4 #3591BC #354EBC

triadic

#3591BC #BC3591 #91BC35

tetradic

#3591BC #A435BC #BC6035 #4EBC35

square

#3591BC #A435BC #BC6035 #4EBC35

split-complementary

#3591BC #BC354E #BCA435

monochromatic

#1A475D #286C8C #3591BC #5DACD1 #8DC5DF

Accessibility & contrast

On white

3.54

#3591BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.93

#3591BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3591BC

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3591BC	#FFFFFF	#000000	##000000
##3591BC	1.00	3.54	5.93	5.93
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.93	21.00	1.00	1.00
##000000	5.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8FBE

Deuteranopia (green-blind)

#6982BB

Tritanopia (blue-blind)

#009D9F

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3591bc;
/* rgb */ color: rgb(53, 145, 188);
/* oklch */ color: oklch(62.1% 0.107 232.6);

Tailwind

colors: {
  custom: {
    50: '#7eb1d0',
    500: '#3591bc',
    950: '#000000',
  },
}

SCSS

$custom: #3591bc;
$custom-light: #7eb1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3591bc",
  "rgb": {
    "r": 53,
    "g": 145,
    "b": 188
  },
  "hsl": {
    "h": 199.111,
    "s": 56.017,
    "l": 47.255
  },
  "oklch": {
    "l": 0.62129,
    "c": 0.10673,
    "h": 232.6
  },
  "luminance": 0.24639
}

Semantic roles & 50–950 ramp

primary

#3591BC

secondary

#C99A84

accent

#7948DF

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3591BC

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

Preview Lab → · Contrast checker → · Palette generator →