#2F3799#2F3799

#2F3799 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.5% C 0.158 H 273.2°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#2F3799
RGB	rgb(47, 55, 153)
HSL	hsl(235, 53%, 39%)
HSV	hsv(235, 69%, 60%)
CMYK	cmyk(69.3%, 64.1%, 0%, 40%)
CIE-LAB	lab(28.47, 30.00, -54.58)
CIE-LCH	lch(28.47, 62.29, 298.80°)
OKLab	oklab(39.55% 0.0087 -0.1575)
OKLCH	oklch(39.55% 0.158 273.2)
XYZ	xyz(8.2863, 5.6359, 30.7820)
Luminance	0.0564 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3799 #99912F

analogous

#2F6C99 #2F3799 #5C2F99

triadic

#2F3799 #992F37 #37992F

tetradic

#2F3799 #992F6C #99912F #2F995C

square

#2F3799 #992F6C #99912F #2F995C

split-complementary

#2F3799 #995C2F #6C992F

monochromatic

#12153B #21266A #2F3799 #414BC5 #6F77D3

Accessibility & contrast

On white

9.87

#2F3799 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2F3799 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3799

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3799	#FFFFFF	#000000	##FFFFFF
##2F3799	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489C

Deuteranopia (green-blind)

#003E97

Tritanopia (blue-blind)

#005062

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2f3799;
/* rgb */ color: rgb(47, 55, 153);
/* oklch */ color: oklch(39.5% 0.158 273.2);

Tailwind

colors: {
  custom: {
    50: '#766eb8',
    500: '#2f3799',
    950: '#000000',
  },
}

SCSS

$custom: #2f3799;
$custom-light: #766eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3799",
  "rgb": {
    "r": 47,
    "g": 55,
    "b": 153
  },
  "hsl": {
    "h": 235.472,
    "s": 53,
    "l": 39.216
  },
  "oklch": {
    "l": 0.39547,
    "c": 0.15773,
    "h": 273.2
  },
  "luminance": 0.05637
}

Semantic roles & 50–950 ramp

primary

#2F3799

secondary

#BAB469

accent

#D14BDC

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #2F3799

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

Preview Lab → · Contrast checker → · Palette generator →