#3778AC#3778AC

#3778AC is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.4% C 0.105 H 245.5°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3778AC
RGB	rgb(55, 120, 172)
HSL	hsl(207, 52%, 45%)
HSV	hsv(207, 68%, 67%)
CMYK	cmyk(68%, 30.2%, 0%, 32.5%)
CIE-LAB	lab(48.54, -3.64, -33.75)
CIE-LCH	lch(48.54, 33.95, 263.85°)
OKLab	oklab(55.42% -0.0435 -0.0954)
OKLCH	oklch(55.42% 0.105 245.5)
XYZ	xyz(15.7356, 17.2221, 41.5166)
Luminance	0.1722 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3778AC #AC6B37

analogous

#37ACA6 #3778AC #373DAC

triadic

#3778AC #AC3778 #78AC37

tetradic

#3778AC #A637AC #AC6B37 #3DAC37

square

#3778AC #A637AC #AC6B37 #3DAC37

split-complementary

#3778AC #AC373D #ACA637

monochromatic

#19374F #28587E #3778AC #5796C9 #85B3D8

Accessibility & contrast

On white

4.72

#3778AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#3778AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3778AC

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3778AC	#FFFFFF	#000000	##FFFFFF
##3778AC	1.00	4.72	4.44	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#617AAE

Deuteranopia (green-blind)

#516EAB

Tritanopia (blue-blind)

#00858A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3778ac;
/* rgb */ color: rgb(55, 120, 172);
/* oklch */ color: oklch(55.4% 0.105 245.5);

Tailwind

colors: {
  custom: {
    50: '#7b9ec5',
    500: '#3778ac',
    950: '#000000',
  },
}

SCSS

$custom: #3778ac;
$custom-light: #7b9ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#3778ac",
  "rgb": {
    "r": 55,
    "g": 120,
    "b": 172
  },
  "hsl": {
    "h": 206.667,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.55421,
    "c": 0.1048,
    "h": 245.5
  },
  "luminance": 0.17224
}

Semantic roles & 50–950 ramp

primary

#3778AC

secondary

#C29C7D

accent

#8C4DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3778AC

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

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