#3487BB#3487BB

#3487BB is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.7% C 0.112 H 240.2°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#3487BB
RGB	rgb(52, 135, 187)
HSL	hsl(203, 56%, 47%)
HSV	hsv(203, 72%, 73%)
CMYK	cmyk(72.2%, 27.8%, 0%, 26.7%)
CIE-LAB	lab(53.65, -7.61, -34.40)
CIE-LCH	lch(53.65, 35.23, 257.52°)
OKLab	oklab(59.67% -0.0557 -0.0971)
OKLCH	oklch(59.67% 0.112 240.2)
XYZ	xyz(19.0463, 21.6437, 50.1779)
Luminance	0.2165 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3487BB #BB6834

analogous

#34BBAC #3487BB #3444BB

triadic

#3487BB #BB3487 #87BB34

tetradic

#3487BB #AC34BB #BB6834 #44BB34

square

#3487BB #AC34BB #BB6834 #44BB34

split-complementary

#3487BB #BB3444 #BBAC34

monochromatic

#19425B #27648B #3487BB #5BA4D1 #8BBEDF

Accessibility & contrast

On white

3.94

#3487BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#3487BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3487BB

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3487BB	#FFFFFF	#000000	##000000
##3487BB	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)

#5C7ABA

Tritanopia (blue-blind)

#009499

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3487bb;
/* rgb */ color: rgb(52, 135, 187);
/* oklch */ color: oklch(59.7% 0.112 240.2);

Tailwind

colors: {
  custom: {
    50: '#7da9cf',
    500: '#3487bb',
    950: '#000000',
  },
}

SCSS

$custom: #3487bb;
$custom-light: #7da9cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3487bb",
  "rgb": {
    "r": 52,
    "g": 135,
    "b": 187
  },
  "hsl": {
    "h": 203.111,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.59665,
    "c": 0.11197,
    "h": 240.2
  },
  "luminance": 0.21646
}

Semantic roles & 50–950 ramp

primary

#3487BB

secondary

#C99D82

accent

#8248E0

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3487BB

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

Preview Lab → · Contrast checker → · Palette generator →