#2F379A#2F379A

#2F379A is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.6% C 0.159 H 273.1°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#2F379A
RGB	rgb(47, 55, 154)
HSL	hsl(236, 53%, 39%)
HSV	hsv(236, 69%, 60%)
CMYK	cmyk(69.5%, 64.3%, 0%, 39.6%)
CIE-LAB	lab(28.56, 30.37, -55.05)
CIE-LCH	lch(28.56, 62.87, 298.88°)
OKLab	oklab(39.64% 0.0086 -0.1589)
OKLCH	oklch(39.64% 0.159 273.1)
XYZ	xyz(8.3693, 5.6690, 31.2188)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F379A #9A922F

analogous

#2F6D9A #2F379A #5D2F9A

triadic

#2F379A #9A2F37 #379A2F

tetradic

#2F379A #9A2F6D #9A922F #2F9A5D

square

#2F379A #9A2F6D #9A922F #2F9A5D

split-complementary

#2F379A #9A5D2F #6D9A2F

monochromatic

#12163C #21266B #2F379A #414BC5 #7077D3

Accessibility & contrast

On white

9.84

#2F379A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2F379A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F379A

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F379A	#FFFFFF	#000000	##FFFFFF
##2F379A	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489D

Deuteranopia (green-blind)

#003F98

Tritanopia (blue-blind)

#005063

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2f379a;
/* rgb */ color: rgb(47, 55, 154);
/* oklch */ color: oklch(39.6% 0.159 273.1);

Tailwind

colors: {
  custom: {
    50: '#766eb9',
    500: '#2f379a',
    950: '#000000',
  },
}

SCSS

$custom: #2f379a;
$custom-light: #766eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f379a",
  "rgb": {
    "r": 47,
    "g": 55,
    "b": 154
  },
  "hsl": {
    "h": 235.514,
    "s": 53.234,
    "l": 39.412
  },
  "oklch": {
    "l": 0.39638,
    "c": 0.1591,
    "h": 273.1
  },
  "luminance": 0.0567
}

Semantic roles & 50–950 ramp

primary

#2F379A

secondary

#BBB56A

accent

#D24BDD

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #2F379A

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

Preview Lab → · Contrast checker → · Palette generator →