#3591B2#3591B2

#3591B2 is a mid, moderate cyan. Relative luminance 0.242; OKLCH L 61.7% C 0.098 H 225.8°. Best body text is #000000 at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#3591B2
RGB	rgb(53, 145, 178)
HSL	hsl(196, 54%, 45%)
HSV	hsv(196, 70%, 70%)
CMYK	cmyk(70.2%, 18.5%, 0%, 30.2%)
CIE-LAB	lab(56.31, -16.14, -25.13)
CIE-LCH	lch(56.31, 29.87, 237.29°)
OKLab	oklab(61.66% -0.0685 -0.0703)
OKLCH	oklch(61.66% 0.098 225.8)
XYZ	xyz(19.6262, 24.2198, 45.7514)
Luminance	0.2422 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3591B2 #B25635

analogous

#35B294 #3591B2 #3552B2

triadic

#3591B2 #B23591 #91B235

tetradic

#3591B2 #9435B2 #B25635 #52B235

square

#3591B2 #9435B2 #B25635 #52B235

split-complementary

#3591B2 #B23552 #B29435

monochromatic

#194454 #276B83 #3591B2 #57AECD #86C5DB

Accessibility & contrast

On white

3.59

#3591B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.84

#3591B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3591B2

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3591B2	#FFFFFF	#000000	##000000
##3591B2	1.00	3.59	5.84	5.84
#FFFFFF	3.59	1.00	21.00	21.00
#000000	5.84	21.00	1.00	1.00
##000000	5.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8EB4

Deuteranopia (green-blind)

#6E82B2

Tritanopia (blue-blind)

#009B9C

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3591b2;
/* rgb */ color: rgb(53, 145, 178);
/* oklch */ color: oklch(61.7% 0.098 225.8);

Tailwind

colors: {
  custom: {
    50: '#7cb1c9',
    500: '#3591b2',
    950: '#000000',
  },
}

SCSS

$custom: #3591b2;
$custom-light: #7cb1c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3591b2",
  "rgb": {
    "r": 53,
    "g": 145,
    "b": 178
  },
  "hsl": {
    "h": 195.84,
    "s": 54.113,
    "l": 45.294
  },
  "oklch": {
    "l": 0.61664,
    "c": 0.09816,
    "h": 225.8
  },
  "luminance": 0.24222
}

Semantic roles & 50–950 ramp

primary

#3591B2

secondary

#C5917E

accent

#714ADD

background

#F8FAFC

surface

#EFF5F8

border

#CACFD1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3591B2

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

Preview Lab → · Contrast checker → · Palette generator →