#2F379C#2F379C

#2F379C is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.8% C 0.162 H 273.0°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#2F379C
RGB	rgb(47, 55, 156)
HSL	hsl(236, 54%, 40%)
HSV	hsv(236, 70%, 61%)
CMYK	cmyk(69.9%, 64.7%, 0%, 38.8%)
CIE-LAB	lab(28.74, 31.09, -55.98)
CIE-LCH	lch(28.74, 64.04, 299.05°)
OKLab	oklab(39.82% 0.0085 -0.1616)
OKLCH	oklch(39.82% 0.162 273)
XYZ	xyz(8.5372, 5.7362, 32.1033)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F379C #9C942F

analogous

#2F6E9C #2F379C #5D2F9C

triadic

#2F379C #9C2F37 #379C2F

tetradic

#2F379C #9C2F6E #9C942F #2F9C5D

square

#2F379C #9C2F6E #9C942F #2F9C5D

split-complementary

#2F379C #9C5D2F #6E9C2F

monochromatic

#13163E #21266D #2F379C #424CC6 #7178D4

Accessibility & contrast

On white

9.78

#2F379C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#2F379C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F379C

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F379C	#FFFFFF	#000000	##FFFFFF
##2F379C	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499F

Deuteranopia (green-blind)

#003F9A

Tritanopia (blue-blind)

#005164

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2f379c;
/* rgb */ color: rgb(47, 55, 156);
/* oklch */ color: oklch(39.8% 0.162 273.0);

Tailwind

colors: {
  custom: {
    50: '#766eba',
    500: '#2f379c',
    950: '#000000',
  },
}

SCSS

$custom: #2f379c;
$custom-light: #766eba;
$custom-dark: #000000;

JSON

{
  "hex": "#2f379c",
  "rgb": {
    "r": 47,
    "g": 55,
    "b": 156
  },
  "hsl": {
    "h": 235.596,
    "s": 53.695,
    "l": 39.804
  },
  "oklch": {
    "l": 0.39821,
    "c": 0.16182,
    "h": 273
  },
  "luminance": 0.05737
}

Semantic roles & 50–950 ramp

primary

#2F379C

secondary

#BCB66B

accent

#D24BDD

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2F379C

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

Preview Lab → · Contrast checker → · Palette generator →