#2F479B#2F479B

#2F479B is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.9% C 0.140 H 268.0°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#2F479B
RGB	rgb(47, 71, 155)
HSL	hsl(227, 53%, 40%)
HSV	hsv(227, 70%, 61%)
CMYK	cmyk(69.7%, 54.2%, 0%, 39.2%)
CIE-LAB	lab(32.87, 20.09, -48.65)
CIE-LCH	lch(32.87, 52.64, 292.44°)
OKLab	oklab(42.87% -0.0049 -0.1399)
OKLCH	oklch(42.87% 0.14 268)
XYZ	xyz(9.3399, 7.4765, 31.9549)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F479B #9B832F

analogous

#2F7D9B #2F479B #4D2F9B

triadic

#2F479B #9B2F47 #479B2F

tetradic

#2F479B #9B2F7D #9B832F #2F9B4D

square

#2F479B #9B2F7D #9B832F #2F9B4D

split-complementary

#2F479B #9B4D2F #7D9B2F

monochromatic

#131C3D #21316C #2F479B #425FC6 #7187D4

Accessibility & contrast

On white

8.42

#2F479B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#2F479B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F479B

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F479B	#FFFFFF	#000000	##FFFFFF
##2F479B	1.00	8.42	2.50	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B529E

Deuteranopia (green-blind)

#004999

Tritanopia (blue-blind)

#005B6A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2f479b;
/* rgb */ color: rgb(47, 71, 155);
/* oklch */ color: oklch(42.9% 0.140 268.0);

Tailwind

colors: {
  custom: {
    50: '#7579b9',
    500: '#2f479b',
    950: '#000000',
  },
}

SCSS

$custom: #2f479b;
$custom-light: #7579b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f479b",
  "rgb": {
    "r": 47,
    "g": 71,
    "b": 155
  },
  "hsl": {
    "h": 226.667,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.42871,
    "c": 0.13997,
    "h": 268
  },
  "luminance": 0.07477
}

Semantic roles & 50–950 ramp

primary

#2F479B

secondary

#BBA96A

accent

#BC4BDD

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #2F479B

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

Preview Lab → · Contrast checker → · Palette generator →