#3F799E#3F799E

#3F799E is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.3% C 0.084 H 238.8°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#3F799E
RGB	rgb(63, 121, 158)
HSL	hsl(203, 43%, 43%)
HSV	hsv(203, 60%, 62%)
CMYK	cmyk(60.1%, 23.4%, 0%, 38%)
CIE-LAB	lab(48.51, -7.52, -25.61)
CIE-LCH	lch(48.51, 26.69, 253.64°)
OKLab	oklab(55.27% -0.0435 -0.0717)
OKLCH	oklch(55.27% 0.084 238.8)
XYZ	xyz(15.0565, 17.1987, 34.8673)
Luminance	0.1720 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F799E #9E643F

analogous

#3F9E93 #3F799E #3F4A9E

triadic

#3F799E #9E3F79 #799E3F

tetradic

#3F799E #933F9E #9E643F #4A9E3F

square

#3F799E #933F9E #9E643F #4A9E3F

split-complementary

#3F799E #9E3F4A #9E933F

monochromatic

#1C3646 #2E5772 #3F799E #5C98BE #88B4D0

Accessibility & contrast

On white

4.73

#3F799E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#3F799E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F799E

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F799E	#FFFFFF	#000000	##FFFFFF
##3F799E	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6879A0

Deuteranopia (green-blind)

#5B6F9D

Tritanopia (blue-blind)

#008285

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3f799e;
/* rgb */ color: rgb(63, 121, 158);
/* oklch */ color: oklch(55.3% 0.084 238.8);

Tailwind

colors: {
  custom: {
    50: '#7c9fba',
    500: '#3f799e',
    950: '#000000',
  },
}

SCSS

$custom: #3f799e;
$custom-light: #7c9fba;
$custom-dark: #000000;

JSON

{
  "hex": "#3f799e",
  "rgb": {
    "r": 63,
    "g": 121,
    "b": 158
  },
  "hsl": {
    "h": 203.368,
    "s": 42.986,
    "l": 43.333
  },
  "oklch": {
    "l": 0.55273,
    "c": 0.08386,
    "h": 238.8
  },
  "luminance": 0.172
}

Semantic roles & 50–950 ramp

primary

#3F799E

secondary

#BA967F

accent

#8655D3

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #3F799E

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

Preview Lab → · Contrast checker → · Palette generator →