#3978A3#3978A3

#3978A3 is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 55.0% C 0.093 H 241.1°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3978A3
RGB	rgb(57, 120, 163)
HSL	hsl(204, 48%, 43%)
HSV	hsv(204, 65%, 64%)
CMYK	cmyk(65%, 26.4%, 0%, 36.1%)
CIE-LAB	lab(48.19, -6.41, -29.04)
CIE-LCH	lch(48.19, 29.74, 257.55°)
OKLab	oklab(55.03% -0.045 -0.0817)
OKLCH	oklch(55.03% 0.093 241.1)
XYZ	xyz(15.0122, 16.9456, 37.1229)
Luminance	0.1695 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3978A3 #A36439

analogous

#39A399 #3978A3 #3943A3

triadic

#3978A3 #A33978 #78A339

tetradic

#3978A3 #9939A3 #A36439 #43A339

square

#3978A3 #9939A3 #A36439 #43A339

split-complementary

#3978A3 #A33943 #A39939

monochromatic

#193548 #295776 #3978A3 #5597C4 #83B3D4

Accessibility & contrast

On white

4.78

#3978A3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#3978A3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3978A3

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3978A3	#FFFFFF	#000000	##FFFFFF
##3978A3	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6578A5

Deuteranopia (green-blind)

#566EA2

Tritanopia (blue-blind)

#008387

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3978a3;
/* rgb */ color: rgb(57, 120, 163);
/* oklch */ color: oklch(55.0% 0.093 241.1);

Tailwind

colors: {
  custom: {
    50: '#7a9ebe',
    500: '#3978a3',
    950: '#000000',
  },
}

SCSS

$custom: #3978a3;
$custom-light: #7a9ebe;
$custom-dark: #000000;

JSON

{
  "hex": "#3978a3",
  "rgb": {
    "r": 57,
    "g": 120,
    "b": 163
  },
  "hsl": {
    "h": 204.34,
    "s": 48.182,
    "l": 43.137
  },
  "oklch": {
    "l": 0.55028,
    "c": 0.09327,
    "h": 241.1
  },
  "luminance": 0.16947
}

Semantic roles & 50–950 ramp

primary

#3978A3

secondary

#BD967A

accent

#8750D8

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3978A3

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

Preview Lab → · Contrast checker → · Palette generator →