#2F40A1#2F40A1

#2F40A1 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.0% C 0.157 H 270.5°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#2F40A1
RGB	rgb(47, 64, 161)
HSL	hsl(231, 55%, 41%)
HSV	hsv(231, 71%, 63%)
CMYK	cmyk(70.8%, 60.2%, 0%, 36.9%)
CIE-LAB	lab(31.45, 27.01, -54.59)
CIE-LCH	lch(31.45, 60.90, 296.32°)
OKLab	oklab(41.95% 0.0013 -0.1574)
OKLCH	oklch(41.95% 0.157 270.5)
XYZ	xyz(9.4365, 6.8434, 34.5349)
Luminance	0.0684 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F40A1 #A1902F

analogous

#2F79A1 #2F40A1 #572FA1

triadic

#2F40A1 #A12F40 #40A12F

tetradic

#2F40A1 #A12F79 #A1902F #2FA157

square

#2F40A1 #A12F79 #A1902F #2FA157

split-complementary

#2F40A1 #A1572F #79A12F

monochromatic

#131A42 #212D72 #2F40A1 #4558C9 #7483D6

Accessibility & contrast

On white

8.87

#2F40A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#2F40A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F40A1

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F40A1	#FFFFFF	#000000	##FFFFFF
##2F40A1	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA4

Deuteranopia (green-blind)

#00459F

Tritanopia (blue-blind)

#00586A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2f40a1;
/* rgb */ color: rgb(47, 64, 161);
/* oklch */ color: oklch(42.0% 0.157 270.5);

Tailwind

colors: {
  custom: {
    50: '#7774be',
    500: '#2f40a1',
    950: '#000000',
  },
}

SCSS

$custom: #2f40a1;
$custom-light: #7774be;
$custom-dark: #000000;

JSON

{
  "hex": "#2f40a1",
  "rgb": {
    "r": 47,
    "g": 64,
    "b": 161
  },
  "hsl": {
    "h": 231.053,
    "s": 54.808,
    "l": 40.784
  },
  "oklch": {
    "l": 0.41953,
    "c": 0.15743,
    "h": 270.5
  },
  "luminance": 0.06844
}

Semantic roles & 50–950 ramp

primary

#2F40A1

secondary

#BEB26E

accent

#C84ADE

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2F40A1

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

Preview Lab → · Contrast checker → · Palette generator →