#3F799C#3F799C

#3F799C is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.2% C 0.082 H 237.3°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3F799C
RGB	rgb(63, 121, 156)
HSL	hsl(203, 42%, 43%)
HSV	hsv(203, 60%, 61%)
CMYK	cmyk(59.6%, 22.4%, 0%, 38.8%)
CIE-LAB	lab(48.42, -8.18, -24.57)
CIE-LCH	lch(48.42, 25.89, 251.59°)
OKLab	oklab(55.18% -0.0442 -0.0687)
OKLCH	oklch(55.18% 0.082 237.3)
XYZ	xyz(14.8858, 17.1304, 33.9681)
Luminance	0.1713 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F799C #9C623F

analogous

#3F9C91 #3F799C #3F4A9C

triadic

#3F799C #9C3F79 #799C3F

tetradic

#3F799C #913F9C #9C623F #4A9C3F

square

#3F799C #913F9C #9C623F #4A9C3F

split-complementary

#3F799C #9C3F4A #9C913F

monochromatic

#1C3545 #2D5770 #3F799C #5B98BD #87B4CE

Accessibility & contrast

On white

4.74

#3F799C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#3F799C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F799C

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F799C	#FFFFFF	#000000	##FFFFFF
##3F799C	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)

#69789E

Deuteranopia (green-blind)

#5C6F9B

Tritanopia (blue-blind)

#008285

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3f799c;
/* rgb */ color: rgb(63, 121, 156);
/* oklch */ color: oklch(55.2% 0.082 237.3);

Tailwind

colors: {
  custom: {
    50: '#7c9fb9',
    500: '#3f799c',
    950: '#000000',
  },
}

SCSS

$custom: #3f799c;
$custom-light: #7c9fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f799c",
  "rgb": {
    "r": 63,
    "g": 121,
    "b": 156
  },
  "hsl": {
    "h": 202.581,
    "s": 42.466,
    "l": 42.941
  },
  "oklch": {
    "l": 0.55177,
    "c": 0.0817,
    "h": 237.3
  },
  "luminance": 0.17132
}

Semantic roles & 50–950 ramp

primary

#3F799C

secondary

#B9947E

accent

#8456D2

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #3F799C

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

Preview Lab → · Contrast checker → · Palette generator →