#3787AB#3787AB

#3787AB is a mid, moderate cyan. Relative luminance 0.211; OKLCH L 59.0% C 0.094 H 230.9°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#3787AB
RGB	rgb(55, 135, 171)
HSL	hsl(199, 51%, 44%)
HSV	hsv(199, 68%, 67%)
CMYK	cmyk(67.8%, 21.1%, 0%, 32.9%)
CIE-LAB	lab(53.04, -12.65, -26.17)
CIE-LCH	lch(53.04, 29.07, 244.21°)
OKLab	oklab(58.97% -0.0596 -0.0733)
OKLCH	oklch(58.97% 0.094 230.9)
XYZ	xyz(17.5873, 21.0785, 41.6619)
Luminance	0.2108 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3787AB #AB5B37

analogous

#37AB95 #3787AB #374DAB

triadic

#3787AB #AB3787 #87AB37

tetradic

#3787AB #9537AB #AB5B37 #4DAB37

square

#3787AB #9537AB #AB5B37 #4DAB37

split-complementary

#3787AB #AB374D #AB9537

monochromatic

#193E4E #28627D #3787AB #56A5C9 #85BED8

Accessibility & contrast

On white

4.03

#3787AB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#3787AB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3787AB

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3787AB	#FFFFFF	#000000	##000000
##3787AB	1.00	4.03	5.22	5.22
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7585AD

Deuteranopia (green-blind)

#657AAA

Tritanopia (blue-blind)

#009193

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3787ab;
/* rgb */ color: rgb(55, 135, 171);
/* oklch */ color: oklch(59.0% 0.094 230.9);

Tailwind

colors: {
  custom: {
    50: '#7baac4',
    500: '#3787ab',
    950: '#000000',
  },
}

SCSS

$custom: #3787ab;
$custom-light: #7baac4;
$custom-dark: #000000;

JSON

{
  "hex": "#3787ab",
  "rgb": {
    "r": 55,
    "g": 135,
    "b": 171
  },
  "hsl": {
    "h": 198.621,
    "s": 51.327,
    "l": 44.314
  },
  "oklch": {
    "l": 0.58973,
    "c": 0.09448,
    "h": 230.9
  },
  "luminance": 0.2108
}

Semantic roles & 50–950 ramp

primary

#3787AB

secondary

#C1927C

accent

#794DDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #3787AB

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

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