#3978AE#3978AE

#3978AE is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.6% C 0.106 H 247.1°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3978AE
RGB	rgb(57, 120, 174)
HSL	hsl(208, 51%, 45%)
HSV	hsv(208, 67%, 68%)
CMYK	cmyk(67.2%, 31%, 0%, 31.8%)
CIE-LAB	lab(48.71, -2.60, -34.65)
CIE-LCH	lch(48.71, 34.74, 265.71°)
OKLab	oklab(55.61% -0.0415 -0.0979)
OKLCH	oklch(55.61% 0.106 247.1)
XYZ	xyz(16.0409, 17.3571, 42.5411)
Luminance	0.1736 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3978AE #AE6F39

analogous

#39AEA9 #3978AE #393EAE

triadic

#3978AE #AE3978 #78AE39

tetradic

#3978AE #A939AE #AE6F39 #3EAE39

square

#3978AE #A939AE #AE6F39 #3EAE39

split-complementary

#3978AE #AE393E #AEA939

monochromatic

#1B3852 #2A5880 #3978AE #5B96C9 #89B4D8

Accessibility & contrast

On white

4.70

#3978AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#3978AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3978AE

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3978AE	#FFFFFF	#000000	##FFFFFF
##3978AE	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#607AB0

Deuteranopia (green-blind)

#506FAD

Tritanopia (blue-blind)

#00858B

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3978ae;
/* rgb */ color: rgb(57, 120, 174);
/* oklch */ color: oklch(55.6% 0.106 247.1);

Tailwind

colors: {
  custom: {
    50: '#7c9ec6',
    500: '#3978ae',
    950: '#000000',
  },
}

SCSS

$custom: #3978ae;
$custom-light: #7c9ec6;
$custom-dark: #000000;

JSON

{
  "hex": "#3978ae",
  "rgb": {
    "r": 57,
    "g": 120,
    "b": 174
  },
  "hsl": {
    "h": 207.692,
    "s": 50.649,
    "l": 45.294
  },
  "oklch": {
    "l": 0.55605,
    "c": 0.10636,
    "h": 247.1
  },
  "luminance": 0.17359
}

Semantic roles & 50–950 ramp

primary

#3978AE

secondary

#C39F80

accent

#8E4EDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3978AE

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

Preview Lab → · Contrast checker → · Palette generator →