#3178A4#3178A4

#3178A4 is a mid, moderate cyan. Relative luminance 0.168; OKLCH L 54.8% C 0.098 H 239.4°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#3178A4
RGB	rgb(49, 120, 164)
HSL	hsl(203, 54%, 42%)
HSV	hsv(203, 70%, 64%)
CMYK	cmyk(70.1%, 26.8%, 0%, 35.7%)
CIE-LAB	lab(47.96, -7.42, -30.01)
CIE-LCH	lch(47.96, 30.91, 256.10°)
OKLab	oklab(54.79% -0.05 -0.0846)
OKLCH	oklch(54.79% 0.098 239.4)
XYZ	xyz(14.6813, 16.7646, 37.5769)
Luminance	0.1677 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3178A4 #A45D31

analogous

#31A497 #3178A4 #313EA4

triadic

#3178A4 #A43178 #78A431

tetradic

#3178A4 #9731A4 #A45D31 #3EA431

square

#3178A4 #9731A4 #A45D31 #3EA431

split-complementary

#3178A4 #A4313E #A49731

monochromatic

#153346 #235675 #3178A4 #4998C9 #79B3D7

Accessibility & contrast

On white

4.82

#3178A4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#3178A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3178A4

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3178A4	#FFFFFF	#000000	##FFFFFF
##3178A4	1.00	4.82	4.35	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6478A6

Deuteranopia (green-blind)

#546DA3

Tritanopia (blue-blind)

#008387

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3178a4;
/* rgb */ color: rgb(49, 120, 164);
/* oklch */ color: oklch(54.8% 0.098 239.4);

Tailwind

colors: {
  custom: {
    50: '#779ebf',
    500: '#3178a4',
    950: '#000000',
  },
}

SCSS

$custom: #3178a4;
$custom-light: #779ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#3178a4",
  "rgb": {
    "r": 49,
    "g": 120,
    "b": 164
  },
  "hsl": {
    "h": 202.957,
    "s": 53.991,
    "l": 41.765
  },
  "oklch": {
    "l": 0.54785,
    "c": 0.09822,
    "h": 239.4
  },
  "luminance": 0.16766
}

Semantic roles & 50–950 ramp

primary

#3178A4

secondary

#BF8F72

accent

#834ADD

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3178A4

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

Preview Lab → · Contrast checker → · Palette generator →