#3587B9#3587B9

#3587B9 is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.6% C 0.109 H 239.3°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#3587B9
RGB	rgb(53, 135, 185)
HSL	hsl(203, 55%, 47%)
HSV	hsv(203, 71%, 73%)
CMYK	cmyk(71.4%, 27%, 0%, 27.5%)
CIE-LAB	lab(53.58, -8.17, -33.35)
CIE-LCH	lch(53.58, 34.34, 256.24°)
OKLab	oklab(59.59% -0.0558 -0.0941)
OKLCH	oklch(59.59% 0.109 239.3)
XYZ	xyz(18.8857, 21.5855, 49.0606)
Luminance	0.2159 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3587B9 #B96735

analogous

#35B9A9 #3587B9 #3545B9

triadic

#3587B9 #B93587 #87B935

tetradic

#3587B9 #A935B9 #B96735 #45B935

square

#3587B9 #A935B9 #B96735 #45B935

split-complementary

#3587B9 #B93545 #B9A935

monochromatic

#1A425A #276489 #3587B9 #5BA4D0 #8BBEDE

Accessibility & contrast

On white

3.95

#3587B9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#3587B9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3587B9

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3587B9	#FFFFFF	#000000	##000000
##3587B9	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7087BB

Deuteranopia (green-blind)

#5E7AB8

Tritanopia (blue-blind)

#009498

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3587b9;
/* rgb */ color: rgb(53, 135, 185);
/* oklch */ color: oklch(59.6% 0.109 239.3);

Tailwind

colors: {
  custom: {
    50: '#7da9ce',
    500: '#3587b9',
    950: '#000000',
  },
}

SCSS

$custom: #3587b9;
$custom-light: #7da9ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3587b9",
  "rgb": {
    "r": 53,
    "g": 135,
    "b": 185
  },
  "hsl": {
    "h": 202.727,
    "s": 55.462,
    "l": 46.667
  },
  "oklch": {
    "l": 0.59593,
    "c": 0.10939,
    "h": 239.3
  },
  "luminance": 0.21588
}

Semantic roles & 50–950 ramp

primary

#3587B9

secondary

#C89C82

accent

#8249DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3587B9

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

Preview Lab → · Contrast checker → · Palette generator →