#3178A3#3178A3

#3178A3 is a mid, moderate cyan. Relative luminance 0.167; OKLCH L 54.7% C 0.097 H 238.8°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#3178A3
RGB	rgb(49, 120, 163)
HSL	hsl(203, 54%, 42%)
HSV	hsv(203, 70%, 64%)
CMYK	cmyk(69.9%, 26.4%, 0%, 36.1%)
CIE-LAB	lab(47.92, -7.78, -29.49)
CIE-LCH	lch(47.92, 30.50, 255.23°)
OKLab	oklab(54.73% -0.0503 -0.0831)
OKLCH	oklch(54.73% 0.097 238.8)
XYZ	xyz(14.5914, 16.7287, 37.1032)
Luminance	0.1673 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3178A3 #A35C31

analogous

#31A395 #3178A3 #313FA3

triadic

#3178A3 #A33178 #78A331

tetradic

#3178A3 #9531A3 #A35C31 #3FA331

square

#3178A3 #9531A3 #A35C31 #3FA331

split-complementary

#3178A3 #A3313F #A39531

monochromatic

#153345 #235574 #3178A3 #4998C8 #78B3D6

Accessibility & contrast

On white

4.83

#3178A3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#3178A3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3178A3

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3178A3	#FFFFFF	#000000	##FFFFFF
##3178A3	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6478A5

Deuteranopia (green-blind)

#546DA2

Tritanopia (blue-blind)

#008387

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3178a3;
/* rgb */ color: rgb(49, 120, 163);
/* oklch */ color: oklch(54.7% 0.097 238.8);

Tailwind

colors: {
  custom: {
    50: '#779ebe',
    500: '#3178a3',
    950: '#000000',
  },
}

SCSS

$custom: #3178a3;
$custom-light: #779ebe;
$custom-dark: #000000;

JSON

{
  "hex": "#3178a3",
  "rgb": {
    "r": 49,
    "g": 120,
    "b": 163
  },
  "hsl": {
    "h": 202.632,
    "s": 53.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.54733,
    "c": 0.09712,
    "h": 238.8
  },
  "luminance": 0.1673
}

Semantic roles & 50–950 ramp

primary

#3178A3

secondary

#BF8E71

accent

#824BDD

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3178A3

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

Preview Lab → · Contrast checker → · Palette generator →