#2F379E#2F379E

#2F379E is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.0% C 0.165 H 272.9°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#2F379E
RGB	rgb(47, 55, 158)
HSL	hsl(236, 54%, 40%)
HSV	hsv(236, 70%, 62%)
CMYK	cmyk(70.3%, 65.2%, 0%, 38%)
CIE-LAB	lab(28.91, 31.81, -56.91)
CIE-LCH	lch(28.91, 65.20, 299.20°)
OKLab	oklab(40.01% 0.0084 -0.1643)
OKLCH	oklch(40.01% 0.165 272.9)
XYZ	xyz(8.7080, 5.8045, 33.0026)
Luminance	0.0580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F379E #9E962F

analogous

#2F6E9E #2F379E #5F2F9E

triadic

#2F379E #9E2F37 #379E2F

tetradic

#2F379E #9E2F6E #9E962F #2F9E5F

square

#2F379E #9E2F6E #9E962F #2F9E5F

split-complementary

#2F379E #9E5F2F #6E9E2F

monochromatic

#131640 #21276F #2F379E #434DC7 #7279D5

Accessibility & contrast

On white

9.72

#2F379E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2F379E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F379E

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F379E	#FFFFFF	#000000	##FFFFFF
##2F379E	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A1

Deuteranopia (green-blind)

#003F9C

Tritanopia (blue-blind)

#005265

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2f379e;
/* rgb */ color: rgb(47, 55, 158);
/* oklch */ color: oklch(40.0% 0.165 272.9);

Tailwind

colors: {
  custom: {
    50: '#776ebc',
    500: '#2f379e',
    950: '#000000',
  },
}

SCSS

$custom: #2f379e;
$custom-light: #776ebc;
$custom-dark: #000000;

JSON

{
  "hex": "#2f379e",
  "rgb": {
    "r": 47,
    "g": 55,
    "b": 158
  },
  "hsl": {
    "h": 235.676,
    "s": 54.146,
    "l": 40.196
  },
  "oklch": {
    "l": 0.40005,
    "c": 0.16452,
    "h": 272.9
  },
  "luminance": 0.05805
}

Semantic roles & 50–950 ramp

primary

#2F379E

secondary

#BDB76C

accent

#D34ADE

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2F379E

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

Preview Lab → · Contrast checker → · Palette generator →