#3178DB#3178DB

#3178DB is a mid, vivid cyan. Relative luminance 0.192; OKLCH L 58.1% C 0.167 H 257.6°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#3178DB
RGB	rgb(49, 120, 219)
HSL	hsl(215, 70%, 53%)
HSV	hsv(215, 78%, 86%)
CMYK	cmyk(77.6%, 45.2%, 0%, 14.1%)
CIE-LAB	lab(50.92, 12.70, -56.92)
CIE-LCH	lch(50.92, 58.32, 282.58°)
OKLab	oklab(58.06% -0.0359 -0.1633)
OKLCH	oklch(58.06% 0.167 257.6)
XYZ	xyz(20.7646, 19.1979, 69.6153)
Luminance	0.1920 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3178DB #DB9431

analogous

#31CDDB #3178DB #3F31DB

triadic

#3178DB #DB3178 #78DB31

tetradic

#3178DB #DB31CD #DB9431 #31DB3F

square

#3178DB #DB31CD #DB9431 #31DB3F

split-complementary

#3178DB #DB3F31 #CDDB31

monochromatic

#16407C #1F5BB0 #3178DB #659AE4 #99BCED

Accessibility & contrast

On white

4.34

#3178DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#3178DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3178DB

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3178DB	#FFFFFF	#000000	##000000
##3178DB	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4482DF

Deuteranopia (green-blind)

#1C72D9

Tritanopia (blue-blind)

#00909F

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3178db;
/* rgb */ color: rgb(49, 120, 219);
/* oklch */ color: oklch(58.1% 0.167 257.6);

Tailwind

colors: {
  custom: {
    50: '#829ee7',
    500: '#3178db',
    950: '#000000',
  },
}

SCSS

$custom: #3178db;
$custom-light: #829ee7;
$custom-dark: #000000;

JSON

{
  "hex": "#3178db",
  "rgb": {
    "r": 49,
    "g": 120,
    "b": 219
  },
  "hsl": {
    "h": 214.941,
    "s": 70.248,
    "l": 52.549
  },
  "oklch": {
    "l": 0.58059,
    "c": 0.16719,
    "h": 257.6
  },
  "luminance": 0.192
}

Semantic roles & 50–950 ramp

primary

#3178DB

secondary

#D9BA8F

accent

#A33BED

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3178DB

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

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