#3978C2#3978C2

#3978C2 is a mid, vivid cyan. Relative luminance 0.182; OKLCH L 56.7% C 0.132 H 254.2°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3978C2
RGB	rgb(57, 120, 194)
HSL	hsl(212, 55%, 49%)
HSV	hsv(212, 71%, 76%)
CMYK	cmyk(70.6%, 38.1%, 0%, 23.9%)
CIE-LAB	lab(49.73, 4.53, -44.57)
CIE-LCH	lch(49.73, 44.80, 275.81°)
OKLab	oklab(56.75% -0.036 -0.1269)
OKLCH	oklch(56.75% 0.132 254.2)
XYZ	xyz(18.1378, 18.1959, 53.5847)
Luminance	0.1820 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3978C2 #C28339

analogous

#39BDC2 #3978C2 #3F39C2

triadic

#3978C2 #C23978 #78C239

tetradic

#3978C2 #C239BD #C28339 #39C23F

square

#3978C2 #C239BD #C28339 #39C23F

split-complementary

#3978C2 #C23F39 #BDC239

monochromatic

#1D3D63 #2B5B93 #3978C2 #6698D2 #95B8E0

Accessibility & contrast

On white

4.53

#3978C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#3978C2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3978C2

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3978C2	#FFFFFF	#000000	##000000
##3978C2	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#567DC5

Deuteranopia (green-blind)

#4270C1

Tritanopia (blue-blind)

#008994

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3978c2;
/* rgb */ color: rgb(57, 120, 194);
/* oklch */ color: oklch(56.7% 0.132 254.2);

Tailwind

colors: {
  custom: {
    50: '#7f9ed5',
    500: '#3978c2',
    950: '#000000',
  },
}

SCSS

$custom: #3978c2;
$custom-light: #7f9ed5;
$custom-dark: #000000;

JSON

{
  "hex": "#3978c2",
  "rgb": {
    "r": 57,
    "g": 120,
    "b": 194
  },
  "hsl": {
    "h": 212.409,
    "s": 54.582,
    "l": 49.216
  },
  "oklch": {
    "l": 0.56745,
    "c": 0.13193,
    "h": 254.2
  },
  "luminance": 0.18198
}

Semantic roles & 50–950 ramp

primary

#3978C2

secondary

#CBAE8B

accent

#9A4ADE

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3978C2

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

Preview Lab → · Contrast checker → · Palette generator →