#3378AC#3378AC

#3378AC is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.3% C 0.107 H 244.4°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3378AC
RGB	rgb(51, 120, 172)
HSL	hsl(206, 54%, 44%)
HSV	hsv(206, 70%, 67%)
CMYK	cmyk(70.3%, 30.2%, 0%, 32.5%)
CIE-LAB	lab(48.40, -4.28, -33.98)
CIE-LCH	lch(48.40, 34.25, 262.82°)
OKLab	oklab(55.28% -0.0461 -0.0961)
OKLCH	oklch(55.28% 0.107 244.4)
XYZ	xyz(15.5253, 17.1136, 41.5068)
Luminance	0.1711 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3378AC #AC6733

analogous

#33ACA3 #3378AC #333BAC

triadic

#3378AC #AC3378 #78AC33

tetradic

#3378AC #A333AC #AC6733 #3BAC33

square

#3378AC #A333AC #AC6733 #3BAC33

split-complementary

#3378AC #AC333B #ACA333

monochromatic

#17364E #25577D #3378AC #5197CB #80B3D9

Accessibility & contrast

On white

4.75

#3378AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3378AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3378AC

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3378AC	#FFFFFF	#000000	##FFFFFF
##3378AC	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6079AE

Deuteranopia (green-blind)

#506EAB

Tritanopia (blue-blind)

#00858A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3378ac;
/* rgb */ color: rgb(51, 120, 172);
/* oklch */ color: oklch(55.3% 0.107 244.4);

Tailwind

colors: {
  custom: {
    50: '#799ec5',
    500: '#3378ac',
    950: '#000000',
  },
}

SCSS

$custom: #3378ac;
$custom-light: #799ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#3378ac",
  "rgb": {
    "r": 51,
    "g": 120,
    "b": 172
  },
  "hsl": {
    "h": 205.785,
    "s": 54.26,
    "l": 43.725
  },
  "oklch": {
    "l": 0.55275,
    "c": 0.10654,
    "h": 244.4
  },
  "luminance": 0.17115
}

Semantic roles & 50–950 ramp

primary

#3378AC

secondary

#C29878

accent

#8A4ADE

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3378AC

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

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