#3F778E#3F778E

#3F778E is a mid, moderate cyan. Relative luminance 0.162; OKLCH L 54.0% C 0.069 H 226.9°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F778E
RGB	rgb(63, 119, 142)
HSL	hsl(197, 39%, 40%)
HSV	hsv(197, 56%, 56%)
CMYK	cmyk(55.6%, 16.2%, 0%, 44.3%)
CIE-LAB	lab(47.24, -11.53, -18.15)
CIE-LCH	lch(47.24, 21.50, 237.58°)
OKLab	oklab(54.05% -0.0471 -0.0504)
OKLCH	oklch(54.05% 0.069 226.9)
XYZ	xyz(13.5274, 16.2022, 28.0004)
Luminance	0.1620 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F778E #8E563F

analogous

#3F8E7D #3F778E #3F508E

triadic

#3F778E #8E3F77 #778E3F

tetradic

#3F778E #7D3F8E #8E563F #508E3F

square

#3F778E #7D3F8E #8E563F #508E3F

split-complementary

#3F778E #8E3F50 #8E7D3F

monochromatic

#193039 #2C5364 #3F778E #5699B4 #81B2C7

Accessibility & contrast

On white

4.95

#3F778E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#3F778E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F778E

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F778E	#FFFFFF	#000000	##FFFFFF
##3F778E	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B758F

Deuteranopia (green-blind)

#5F6C8E

Tritanopia (blue-blind)

#007E7E

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f778e;
/* rgb */ color: rgb(63, 119, 142);
/* oklch */ color: oklch(54.0% 0.069 226.9);

Tailwind

colors: {
  custom: {
    50: '#7a9eaf',
    500: '#3f778e',
    950: '#000000',
  },
}

SCSS

$custom: #3f778e;
$custom-light: #7a9eaf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f778e",
  "rgb": {
    "r": 63,
    "g": 119,
    "b": 142
  },
  "hsl": {
    "h": 197.468,
    "s": 38.537,
    "l": 40.196
  },
  "oklch": {
    "l": 0.54046,
    "c": 0.06903,
    "h": 226.9
  },
  "luminance": 0.16203
}

Semantic roles & 50–950 ramp

primary

#3F778E

secondary

#B18878

accent

#7B59CE

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#0A0E10

muted

#7C7E7F

Preview Lab

Preview with #3F778E

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

Preview Lab → · Contrast checker → · Palette generator →