#3787B2#3787B2

#3787B2 is a mid, moderate cyan. Relative luminance 0.214; OKLCH L 59.3% C 0.101 H 235.7°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#3787B2
RGB	rgb(55, 135, 178)
HSL	hsl(201, 53%, 46%)
HSV	hsv(201, 69%, 70%)
CMYK	cmyk(69.1%, 24.2%, 0%, 30.2%)
CIE-LAB	lab(53.33, -10.28, -29.73)
CIE-LCH	lch(53.33, 31.46, 250.93°)
OKLab	oklab(59.31% -0.057 -0.0836)
OKLCH	oklch(59.31% 0.101 235.7)
XYZ	xyz(18.2723, 21.3525, 45.2693)
Luminance	0.2135 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3787B2 #B26237

analogous

#37B2A0 #3787B2 #3749B2

triadic

#3787B2 #B23787 #87B237

tetradic

#3787B2 #A037B2 #B26237 #49B237

square

#3787B2 #A037B2 #B26237 #49B237

split-complementary

#3787B2 #B23749 #B2A037

monochromatic

#1A4054 #296483 #3787B2 #5AA4CC #89BEDB

Accessibility & contrast

On white

3.98

#3787B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#3787B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3787B2

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3787B2	#FFFFFF	#000000	##000000
##3787B2	1.00	3.98	5.27	5.27
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7286B4

Deuteranopia (green-blind)

#627AB1

Tritanopia (blue-blind)

#009296

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3787b2;
/* rgb */ color: rgb(55, 135, 178);
/* oklch */ color: oklch(59.3% 0.101 235.7);

Tailwind

colors: {
  custom: {
    50: '#7ca9c9',
    500: '#3787b2',
    950: '#000000',
  },
}

SCSS

$custom: #3787b2;
$custom-light: #7ca9c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3787b2",
  "rgb": {
    "r": 55,
    "g": 135,
    "b": 178
  },
  "hsl": {
    "h": 200.976,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.59308,
    "c": 0.1012,
    "h": 235.7
  },
  "luminance": 0.21355
}

Semantic roles & 50–950 ramp

primary

#3787B2

secondary

#C59880

accent

#7E4CDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3787B2

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

Preview Lab → · Contrast checker → · Palette generator →