#3587BB#3587BB

#3587BB is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.7% C 0.112 H 240.4°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#3587BB
RGB	rgb(53, 135, 187)
HSL	hsl(203, 56%, 47%)
HSV	hsv(203, 72%, 73%)
CMYK	cmyk(71.7%, 27.8%, 0%, 26.7%)
CIE-LAB	lab(53.68, -7.47, -34.36)
CIE-LCH	lch(53.68, 35.16, 257.73°)
OKLab	oklab(59.7% -0.0552 -0.097)
OKLCH	oklch(59.7% 0.112 240.4)
XYZ	xyz(19.0983, 21.6705, 50.1804)
Luminance	0.2167 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3587BB #BB6935

analogous

#35BBAC #3587BB #3544BB

triadic

#3587BB #BB3587 #87BB35

tetradic

#3587BB #AC35BB #BB6935 #44BB35

square

#3587BB #AC35BB #BB6935 #44BB35

split-complementary

#3587BB #BB3544 #BBAC35

monochromatic

#1A425C #27658B #3587BB #5CA4D1 #8CBEDE

Accessibility & contrast

On white

3.94

#3587BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#3587BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3587BB

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3587BB	#FFFFFF	#000000	##000000
##3587BB	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F87BD

Deuteranopia (green-blind)

#5D7BBA

Tritanopia (blue-blind)

#009499

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3587bb;
/* rgb */ color: rgb(53, 135, 187);
/* oklch */ color: oklch(59.7% 0.112 240.4);

Tailwind

colors: {
  custom: {
    50: '#7da9cf',
    500: '#3587bb',
    950: '#000000',
  },
}

SCSS

$custom: #3587bb;
$custom-light: #7da9cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3587bb",
  "rgb": {
    "r": 53,
    "g": 135,
    "b": 187
  },
  "hsl": {
    "h": 203.284,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.59696,
    "c": 0.11157,
    "h": 240.4
  },
  "luminance": 0.21673
}

Semantic roles & 50–950 ramp

primary

#3587BB

secondary

#C99E83

accent

#8349DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3587BB

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

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