#2F3379#2F3379

#2F3379 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 36.0% C 0.117 H 276.3°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#2F3379
RGB	rgb(47, 51, 121)
HSL	hsl(237, 44%, 33%)
HSV	hsv(237, 61%, 47%)
CMYK	cmyk(61.2%, 57.9%, 0%, 52.5%)
CIE-LAB	lab(24.80, 21.05, -40.66)
CIE-LCH	lch(24.80, 45.79, 297.37°)
OKLab	oklab(36.01% 0.0129 -0.1166)
OKLCH	oklch(36.01% 0.117 276.3)
XYZ	xyz(5.8062, 4.3520, 18.6195)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3379 #79752F

analogous

#2F5879 #2F3379 #502F79

triadic

#2F3379 #792F33 #33792F

tetradic

#2F3379 #792F58 #79752F #2F7950

square

#2F3379 #792F58 #79752F #2F7950

split-complementary

#2F3379 #79502F #58792F

monochromatic

#0D0E21 #1E204D #2F3379 #4046A5 #6166C2

Accessibility & contrast

On white

11.23

#2F3379 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#2F3379 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3379

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3379	#FFFFFF	#000000	##FFFFFF
##2F3379	1.00	11.23	1.87	11.23
#FFFFFF	11.23	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7B

Deuteranopia (green-blind)

#003878

Tritanopia (blue-blind)

#004350

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2f3379;
/* rgb */ color: rgb(47, 51, 121);
/* oklch */ color: oklch(36.0% 0.117 276.3);

Tailwind

colors: {
  custom: {
    50: '#6f6aa0',
    500: '#2f3379',
    950: '#000000',
  },
}

SCSS

$custom: #2f3379;
$custom-light: #6f6aa0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3379",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 121
  },
  "hsl": {
    "h": 236.757,
    "s": 44.048,
    "l": 32.941
  },
  "oklch": {
    "l": 0.36007,
    "c": 0.11733,
    "h": 276.3
  },
  "luminance": 0.04352
}

Semantic roles & 50–950 ramp

primary

#2F3379

secondary

#A8A45B

accent

#CD54D4

background

#F7F6F9

surface

#EDEBF2

border

#C8C6CC

text

#08060F

muted

#7B7A7E

Preview Lab

Preview with #2F3379

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

Preview Lab → · Contrast checker → · Palette generator →