#3178CE#3178CE

#3178CE is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 57.2% C 0.150 H 255.2°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#3178CE
RGB	rgb(49, 120, 206)
HSL	hsl(213, 62%, 50%)
HSV	hsv(213, 76%, 81%)
CMYK	cmyk(76.2%, 41.7%, 0%, 19.2%)
CIE-LAB	lab(50.14, 7.86, -50.79)
CIE-LCH	lch(50.14, 51.39, 278.80°)
OKLab	oklab(57.21% -0.0384 -0.1453)
OKLCH	oklch(57.21% 0.15 255.2)
XYZ	xyz(19.1195, 18.5399, 60.9514)
Luminance	0.1854 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3178CE #CE8731

analogous

#31C7CE #3178CE #3831CE

triadic

#3178CE #CE3178 #78CE31

tetradic

#3178CE #CE31C7 #CE8731 #31CE38

square

#3178CE #CE31C7 #CE8731 #31CE38

split-complementary

#3178CE #CE3831 #C7CE31

monochromatic

#193E6B #255B9D #3178CE #6298DA #94B9E6

Accessibility & contrast

On white

4.46

#3178CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#3178CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3178CE

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3178CE	#FFFFFF	#000000	##000000
##3178CE	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E7FD1

Deuteranopia (green-blind)

#3271CC

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3178ce;
/* rgb */ color: rgb(49, 120, 206);
/* oklch */ color: oklch(57.2% 0.150 255.2);

Tailwind

colors: {
  custom: {
    50: '#7f9edd',
    500: '#3178ce',
    950: '#000000',
  },
}

SCSS

$custom: #3178ce;
$custom-light: #7f9edd;
$custom-dark: #000000;

JSON

{
  "hex": "#3178ce",
  "rgb": {
    "r": 49,
    "g": 120,
    "b": 206
  },
  "hsl": {
    "h": 212.866,
    "s": 61.569,
    "l": 50
  },
  "oklch": {
    "l": 0.5721,
    "c": 0.15026,
    "h": 255.2
  },
  "luminance": 0.18542
}

Semantic roles & 50–950 ramp

primary

#3178CE

secondary

#D1B18A

accent

#9C43E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3178CE

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

Preview Lab → · Contrast checker → · Palette generator →