#3187BC#3187BC

#3187BC is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.6% C 0.114 H 240.1°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#3187BC
RGB	rgb(49, 135, 188)
HSL	hsl(203, 59%, 46%)
HSV	hsv(203, 74%, 74%)
CMYK	cmyk(73.9%, 28.2%, 0%, 26.3%)
CIE-LAB	lab(53.61, -7.67, -35.04)
CIE-LCH	lch(53.61, 35.87, 257.65°)
OKLab	oklab(59.63% -0.057 -0.099)
OKLCH	oklch(59.63% 0.114 240.1)
XYZ	xyz(19.0041, 21.6096, 50.7367)
Luminance	0.2161 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3187BC #BC6631

analogous

#31BCAC #3187BC #3141BC

triadic

#3187BC #BC3187 #87BC31

tetradic

#3187BC #AC31BC #BC6631 #41BC31

square

#3187BC #AC31BC #BC6631 #41BC31

split-complementary

#3187BC #BC3141 #BCAC31

monochromatic

#18415B #24648B #3187BC #57A4D3 #88BEE0

Accessibility & contrast

On white

3.95

#3187BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#3187BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3187BC

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3187BC	#FFFFFF	#000000	##000000
##3187BC	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)

#6E87BE

Deuteranopia (green-blind)

#5B7ABB

Tritanopia (blue-blind)

#009499

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3187bc;
/* rgb */ color: rgb(49, 135, 188);
/* oklch */ color: oklch(59.6% 0.114 240.1);

Tailwind

colors: {
  custom: {
    50: '#7ca9d0',
    500: '#3187bc',
    950: '#000000',
  },
}

SCSS

$custom: #3187bc;
$custom-light: #7ca9d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3187bc",
  "rgb": {
    "r": 49,
    "g": 135,
    "b": 188
  },
  "hsl": {
    "h": 202.878,
    "s": 58.65,
    "l": 46.471
  },
  "oklch": {
    "l": 0.59627,
    "c": 0.11424,
    "h": 240.1
  },
  "luminance": 0.21612
}

Semantic roles & 50–950 ramp

primary

#3187BC

secondary

#CA9C7F

accent

#8146E2

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3187BC

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

Preview Lab → · Contrast checker → · Palette generator →