#3F799F#3F799F

#3F799F is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.3% C 0.085 H 239.5°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F799F
RGB	rgb(63, 121, 159)
HSL	hsl(204, 43%, 44%)
HSV	hsv(204, 60%, 62%)
CMYK	cmyk(60.4%, 23.9%, 0%, 37.6%)
CIE-LAB	lab(48.55, -7.19, -26.13)
CIE-LCH	lch(48.55, 27.10, 254.62°)
OKLab	oklab(55.32% -0.0431 -0.0732)
OKLCH	oklch(55.32% 0.085 239.5)
XYZ	xyz(15.1429, 17.2333, 35.3225)
Luminance	0.1724 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F799F #9F653F

analogous

#3F9F95 #3F799F #3F499F

triadic

#3F799F #9F3F79 #799F3F

tetradic

#3F799F #953F9F #9F653F #499F3F

square

#3F799F #953F9F #9F653F #499F3F

split-complementary

#3F799F #9F3F49 #9F953F

monochromatic

#1C3647 #2E5873 #3F799F #5D98BF #88B4D0

Accessibility & contrast

On white

4.72

#3F799F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#3F799F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F799F

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F799F	#FFFFFF	#000000	##FFFFFF
##3F799F	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6879A1

Deuteranopia (green-blind)

#5B6F9E

Tritanopia (blue-blind)

#008386

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3f799f;
/* rgb */ color: rgb(63, 121, 159);
/* oklch */ color: oklch(55.3% 0.085 239.5);

Tailwind

colors: {
  custom: {
    50: '#7d9fbb',
    500: '#3f799f',
    950: '#000000',
  },
}

SCSS

$custom: #3f799f;
$custom-light: #7d9fbb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f799f",
  "rgb": {
    "r": 63,
    "g": 121,
    "b": 159
  },
  "hsl": {
    "h": 203.75,
    "s": 43.243,
    "l": 43.529
  },
  "oklch": {
    "l": 0.55321,
    "c": 0.08495,
    "h": 239.5
  },
  "luminance": 0.17235
}

Semantic roles & 50–950 ramp

primary

#3F799F

secondary

#BB977F

accent

#8755D3

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3F799F

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

Preview Lab → · Contrast checker → · Palette generator →