#3978A8#3978A8

#3978A8 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.3% C 0.099 H 244.1°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3978A8
RGB	rgb(57, 120, 168)
HSL	hsl(206, 49%, 44%)
HSV	hsv(206, 66%, 66%)
CMYK	cmyk(66.1%, 28.6%, 0%, 34.1%)
CIE-LAB	lab(48.42, -4.69, -31.60)
CIE-LCH	lch(48.42, 31.95, 261.56°)
OKLab	oklab(55.29% -0.0434 -0.0891)
OKLCH	oklch(55.29% 0.099 244.1)
XYZ	xyz(15.4690, 17.1284, 39.5291)
Luminance	0.1713 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3978A8 #A86939

analogous

#39A8A1 #3978A8 #3941A8

triadic

#3978A8 #A83978 #78A839

tetradic

#3978A8 #A139A8 #A86939 #41A839

square

#3978A8 #A139A8 #A86939 #41A839

split-complementary

#3978A8 #A83941 #A8A139

monochromatic

#1A374D #29577A #3978A8 #5897C6 #86B3D6

Accessibility & contrast

On white

4.74

#3978A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#3978A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3978A8

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3978A8	#FFFFFF	#000000	##FFFFFF
##3978A8	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6379AA

Deuteranopia (green-blind)

#536EA7

Tritanopia (blue-blind)

#008489

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3978a8;
/* rgb */ color: rgb(57, 120, 168);
/* oklch */ color: oklch(55.3% 0.099 244.1);

Tailwind

colors: {
  custom: {
    50: '#7b9ec2',
    500: '#3978a8',
    950: '#000000',
  },
}

SCSS

$custom: #3978a8;
$custom-light: #7b9ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#3978a8",
  "rgb": {
    "r": 57,
    "g": 120,
    "b": 168
  },
  "hsl": {
    "h": 205.946,
    "s": 49.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.55286,
    "c": 0.09909,
    "h": 244.1
  },
  "luminance": 0.1713
}

Semantic roles & 50–950 ramp

primary

#3978A8

secondary

#C09A7D

accent

#8B4FD9

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3978A8

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

Preview Lab → · Contrast checker → · Palette generator →