#3588BB#3588BB

#3588BB is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.9% C 0.111 H 239.6°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3588BB
RGB	rgb(53, 136, 187)
HSL	hsl(203, 56%, 47%)
HSV	hsv(203, 72%, 73%)
CMYK	cmyk(71.7%, 27.3%, 0%, 26.7%)
CIE-LAB	lab(53.97, -8.04, -33.89)
CIE-LCH	lch(53.97, 34.83, 256.65°)
OKLab	oklab(59.93% -0.0561 -0.0956)
OKLCH	oklch(59.93% 0.111 239.6)
XYZ	xyz(19.2385, 21.9509, 50.2271)
Luminance	0.2195 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3588BB #BB6835

analogous

#35BBAB #3588BB #3545BB

triadic

#3588BB #BB3588 #88BB35

tetradic

#3588BB #AB35BB #BB6835 #45BB35

square

#3588BB #AB35BB #BB6835 #45BB35

split-complementary

#3588BB #BB3545 #BBAB35

monochromatic

#1A435C #27658B #3588BB #5CA5D1 #8CBFDE

Accessibility & contrast

On white

3.90

#3588BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#3588BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3588BB

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3588BB	#FFFFFF	#000000	##000000
##3588BB	1.00	3.90	5.39	5.39
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7088BD

Deuteranopia (green-blind)

#5E7BBA

Tritanopia (blue-blind)

#00959A

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3588bb;
/* rgb */ color: rgb(53, 136, 187);
/* oklch */ color: oklch(59.9% 0.111 239.6);

Tailwind

colors: {
  custom: {
    50: '#7daacf',
    500: '#3588bb',
    950: '#000000',
  },
}

SCSS

$custom: #3588bb;
$custom-light: #7daacf;
$custom-dark: #000000;

JSON

{
  "hex": "#3588bb",
  "rgb": {
    "r": 53,
    "g": 136,
    "b": 187
  },
  "hsl": {
    "h": 202.836,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.59933,
    "c": 0.11088,
    "h": 239.6
  },
  "luminance": 0.21953
}

Semantic roles & 50–950 ramp

primary

#3588BB

secondary

#C99E83

accent

#8249DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3588BB

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

Preview Lab → · Contrast checker → · Palette generator →