#3978A9#3978A9

#3978A9 is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.3% C 0.100 H 244.6°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3978A9
RGB	rgb(57, 120, 169)
HSL	hsl(206, 50%, 44%)
HSV	hsv(206, 66%, 66%)
CMYK	cmyk(66.3%, 29%, 0%, 33.7%)
CIE-LAB	lab(48.47, -4.34, -32.11)
CIE-LCH	lch(48.47, 32.41, 262.30°)
OKLab	oklab(55.34% -0.043 -0.0906)
OKLCH	oklch(55.34% 0.1 244.6)
XYZ	xyz(15.5625, 17.1658, 40.0216)
Luminance	0.1717 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3978A9 #A96A39

analogous

#39A9A2 #3978A9 #3940A9

triadic

#3978A9 #A93978 #78A939

tetradic

#3978A9 #A239A9 #A96A39 #40A939

square

#3978A9 #A239A9 #A96A39 #40A939

split-complementary

#3978A9 #A93940 #A9A239

monochromatic

#1A374D #2A587B #3978A9 #5897C7 #86B3D6

Accessibility & contrast

On white

4.74

#3978A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#3978A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3978A9

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3978A9	#FFFFFF	#000000	##FFFFFF
##3978A9	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)

#6279AB

Deuteranopia (green-blind)

#536EA8

Tritanopia (blue-blind)

#008489

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3978a9;
/* rgb */ color: rgb(57, 120, 169);
/* oklch */ color: oklch(55.3% 0.100 244.6);

Tailwind

colors: {
  custom: {
    50: '#7b9ec3',
    500: '#3978a9',
    950: '#000000',
  },
}

SCSS

$custom: #3978a9;
$custom-light: #7b9ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#3978a9",
  "rgb": {
    "r": 57,
    "g": 120,
    "b": 169
  },
  "hsl": {
    "h": 206.25,
    "s": 49.558,
    "l": 44.314
  },
  "oklch": {
    "l": 0.55338,
    "c": 0.10029,
    "h": 244.6
  },
  "luminance": 0.17167
}

Semantic roles & 50–950 ramp

primary

#3978A9

secondary

#C09B7E

accent

#8B4FD9

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3978A9

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

Preview Lab → · Contrast checker → · Palette generator →