#3591B0#3591B0

#3591B0 is a mid, moderate cyan. Relative luminance 0.241; OKLCH L 61.6% C 0.097 H 224.2°. Best body text is #000000 at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#3591B0
RGB	rgb(53, 145, 176)
HSL	hsl(195, 54%, 45%)
HSV	hsv(195, 70%, 69%)
CMYK	cmyk(69.9%, 17.6%, 0%, 31%)
CIE-LAB	lab(56.23, -16.80, -24.11)
CIE-LCH	lch(56.23, 29.39, 235.14°)
OKLab	oklab(61.57% -0.0692 -0.0674)
OKLCH	oklch(61.57% 0.097 224.2)
XYZ	xyz(19.4269, 24.1401, 44.7015)
Luminance	0.2414 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3591B0 #B05435

analogous

#35B092 #3591B0 #3553B0

triadic

#3591B0 #B03591 #91B035

tetradic

#3591B0 #9235B0 #B05435 #53B035

square

#3591B0 #9235B0 #B05435 #53B035

split-complementary

#3591B0 #B03553 #B09235

monochromatic

#194352 #276A81 #3591B0 #56AECC #85C5DA

Accessibility & contrast

On white

3.60

#3591B0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.83

#3591B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3591B0

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3591B0	#FFFFFF	#000000	##000000
##3591B0	1.00	3.60	5.83	5.83
#FFFFFF	3.60	1.00	21.00	21.00
#000000	5.83	21.00	1.00	1.00
##000000	5.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#808EB2

Deuteranopia (green-blind)

#6F81B0

Tritanopia (blue-blind)

#009A9B

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3591b0;
/* rgb */ color: rgb(53, 145, 176);
/* oklch */ color: oklch(61.6% 0.097 224.2);

Tailwind

colors: {
  custom: {
    50: '#7cb1c7',
    500: '#3591b0',
    950: '#000000',
  },
}

SCSS

$custom: #3591b0;
$custom-light: #7cb1c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3591b0",
  "rgb": {
    "r": 53,
    "g": 145,
    "b": 176
  },
  "hsl": {
    "h": 195.122,
    "s": 53.712,
    "l": 44.902
  },
  "oklch": {
    "l": 0.61574,
    "c": 0.09663,
    "h": 224.2
  },
  "luminance": 0.24142
}

Semantic roles & 50–950 ramp

primary

#3591B0

secondary

#C48F7D

accent

#704BDD

background

#F8FAFC

surface

#EFF5F8

border

#CACFD1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3591B0

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

Preview Lab → · Contrast checker → · Palette generator →