#3978A5#3978A5

#3978A5 is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 55.1% C 0.096 H 242.4°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#3978A5
RGB	rgb(57, 120, 165)
HSL	hsl(205, 49%, 44%)
HSV	hsv(205, 65%, 65%)
CMYK	cmyk(65.5%, 27.3%, 0%, 35.3%)
CIE-LAB	lab(48.28, -5.73, -30.07)
CIE-LCH	lch(48.28, 30.61, 259.22°)
OKLab	oklab(55.13% -0.0443 -0.0847)
OKLCH	oklch(55.13% 0.096 242.4)
XYZ	xyz(15.1928, 17.0179, 38.0741)
Luminance	0.1702 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3978A5 #A56639

analogous

#39A59C #3978A5 #3942A5

triadic

#3978A5 #A53978 #78A539

tetradic

#3978A5 #9C39A5 #A56639 #42A539

square

#3978A5 #9C39A5 #A56639 #42A539

split-complementary

#3978A5 #A53942 #A59C39

monochromatic

#1A364A #295778 #3978A5 #5697C5 #84B3D4

Accessibility & contrast

On white

4.77

#3978A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#3978A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3978A5

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3978A5	#FFFFFF	#000000	##FFFFFF
##3978A5	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6479A7

Deuteranopia (green-blind)

#556EA4

Tritanopia (blue-blind)

#008388

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3978a5;
/* rgb */ color: rgb(57, 120, 165);
/* oklch */ color: oklch(55.1% 0.096 242.4);

Tailwind

colors: {
  custom: {
    50: '#7b9ec0',
    500: '#3978a5',
    950: '#000000',
  },
}

SCSS

$custom: #3978a5;
$custom-light: #7b9ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#3978a5",
  "rgb": {
    "r": 57,
    "g": 120,
    "b": 165
  },
  "hsl": {
    "h": 205,
    "s": 48.649,
    "l": 43.529
  },
  "oklch": {
    "l": 0.55131,
    "c": 0.09557,
    "h": 242.4
  },
  "luminance": 0.17019
}

Semantic roles & 50–950 ramp

primary

#3978A5

secondary

#BE977B

accent

#8950D8

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3978A5

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

Preview Lab → · Contrast checker → · Palette generator →