#3978A7#3978A7

#3978A7 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.2% C 0.098 H 243.5°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3978A7
RGB	rgb(57, 120, 167)
HSL	hsl(206, 49%, 44%)
HSV	hsv(206, 66%, 65%)
CMYK	cmyk(65.9%, 28.1%, 0%, 34.5%)
CIE-LAB	lab(48.37, -5.04, -31.09)
CIE-LCH	lch(48.37, 31.50, 260.80°)
OKLab	oklab(55.23% -0.0437 -0.0876)
OKLCH	oklch(55.23% 0.098 243.5)
XYZ	xyz(15.3762, 17.0913, 39.0403)
Luminance	0.1709 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3978A7 #A76839

analogous

#39A79F #3978A7 #3941A7

triadic

#3978A7 #A73978 #78A739

tetradic

#3978A7 #9F39A7 #A76839 #41A739

square

#3978A7 #9F39A7 #A76839 #41A739

split-complementary

#3978A7 #A73941 #A79F39

monochromatic

#1A364C #295779 #3978A7 #5797C6 #85B3D5

Accessibility & contrast

On white

4.75

#3978A7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3978A7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3978A7

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3978A7	#FFFFFF	#000000	##FFFFFF
##3978A7	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6379A9

Deuteranopia (green-blind)

#546EA6

Tritanopia (blue-blind)

#008388

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3978a7;
/* rgb */ color: rgb(57, 120, 167);
/* oklch */ color: oklch(55.2% 0.098 243.5);

Tailwind

colors: {
  custom: {
    50: '#7b9ec1',
    500: '#3978a7',
    950: '#000000',
  },
}

SCSS

$custom: #3978a7;
$custom-light: #7b9ec1;
$custom-dark: #000000;

JSON

{
  "hex": "#3978a7",
  "rgb": {
    "r": 57,
    "g": 120,
    "b": 167
  },
  "hsl": {
    "h": 205.636,
    "s": 49.107,
    "l": 43.922
  },
  "oklch": {
    "l": 0.55234,
    "c": 0.0979,
    "h": 243.5
  },
  "luminance": 0.17093
}

Semantic roles & 50–950 ramp

primary

#3978A7

secondary

#BF997D

accent

#8A4FD9

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3978A7

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

Preview Lab → · Contrast checker → · Palette generator →