#3978C3#3978C3

#3978C3 is a mid, vivid cyan. Relative luminance 0.182; OKLCH L 56.8% C 0.133 H 254.4°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#3978C3
RGB	rgb(57, 120, 195)
HSL	hsl(213, 55%, 49%)
HSV	hsv(213, 71%, 76%)
CMYK	cmyk(70.8%, 38.5%, 0%, 23.5%)
CIE-LAB	lab(49.79, 4.89, -45.06)
CIE-LCH	lch(49.79, 45.32, 276.20°)
OKLab	oklab(56.81% -0.0358 -0.1283)
OKLCH	oklch(56.81% 0.133 254.4)
XYZ	xyz(18.2505, 18.2410, 54.1782)
Luminance	0.1824 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3978C3 #C38439

analogous

#39BDC3 #3978C3 #3F39C3

triadic

#3978C3 #C33978 #78C339

tetradic

#3978C3 #C339BD #C38439 #39C33F

square

#3978C3 #C339BD #C38439 #39C33F

split-complementary

#3978C3 #C33F39 #BDC339

monochromatic

#1D3E64 #2B5B94 #3978C3 #6798D2 #96B8E0

Accessibility & contrast

On white

4.52

#3978C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#3978C3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3978C3

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3978C3	#FFFFFF	#000000	##000000
##3978C3	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#567DC6

Deuteranopia (green-blind)

#4171C1

Tritanopia (blue-blind)

#008A94

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3978c3;
/* rgb */ color: rgb(57, 120, 195);
/* oklch */ color: oklch(56.8% 0.133 254.4);

Tailwind

colors: {
  custom: {
    50: '#809ed5',
    500: '#3978c3',
    950: '#000000',
  },
}

SCSS

$custom: #3978c3;
$custom-light: #809ed5;
$custom-dark: #000000;

JSON

{
  "hex": "#3978c3",
  "rgb": {
    "r": 57,
    "g": 120,
    "b": 195
  },
  "hsl": {
    "h": 212.609,
    "s": 54.762,
    "l": 49.412
  },
  "oklch": {
    "l": 0.56805,
    "c": 0.13324,
    "h": 254.4
  },
  "luminance": 0.18243
}

Semantic roles & 50–950 ramp

primary

#3978C3

secondary

#CCAF8C

accent

#9A4ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3978C3

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

Preview Lab → · Contrast checker → · Palette generator →