#2F399A#2F399A

#2F399A is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.0% C 0.157 H 272.6°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#2F399A
RGB	rgb(47, 57, 154)
HSL	hsl(234, 53%, 39%)
HSV	hsv(234, 69%, 60%)
CMYK	cmyk(69.5%, 63%, 0%, 39.6%)
CIE-LAB	lab(29.06, 29.06, -54.23)
CIE-LCH	lch(29.06, 61.52, 298.18°)
OKLab	oklab(40.01% 0.007 -0.1564)
OKLCH	oklch(40.01% 0.157 272.6)
XYZ	xyz(8.4662, 5.8629, 31.2511)
Luminance	0.0586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F399A #9A902F

analogous

#2F6E9A #2F399A #5B2F9A

triadic

#2F399A #9A2F39 #399A2F

tetradic

#2F399A #9A2F6E #9A902F #2F9A5B

square

#2F399A #9A2F6E #9A902F #2F9A5B

split-complementary

#2F399A #9A5B2F #6E9A2F

monochromatic

#12163C #21286B #2F399A #414DC5 #7079D3

Accessibility & contrast

On white

9.66

#2F399A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#2F399A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F399A

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F399A	#FFFFFF	#000000	##FFFFFF
##2F399A	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499D

Deuteranopia (green-blind)

#004098

Tritanopia (blue-blind)

#005264

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2f399a;
/* rgb */ color: rgb(47, 57, 154);
/* oklch */ color: oklch(40.0% 0.157 272.6);

Tailwind

colors: {
  custom: {
    50: '#766fb9',
    500: '#2f399a',
    950: '#000000',
  },
}

SCSS

$custom: #2f399a;
$custom-light: #766fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f399a",
  "rgb": {
    "r": 47,
    "g": 57,
    "b": 154
  },
  "hsl": {
    "h": 234.393,
    "s": 53.234,
    "l": 39.412
  },
  "oklch": {
    "l": 0.40007,
    "c": 0.1566,
    "h": 272.6
  },
  "luminance": 0.05864
}

Semantic roles & 50–950 ramp

primary

#2F399A

secondary

#BBB36A

accent

#CF4BDD

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #2F399A

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

Preview Lab → · Contrast checker → · Palette generator →