#2F42AB#2F42AB

#2F42AB is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.2% C 0.169 H 269.9°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#2F42AB
RGB	rgb(47, 66, 171)
HSL	hsl(231, 57%, 43%)
HSV	hsv(231, 73%, 67%)
CMYK	cmyk(72.5%, 61.4%, 0%, 32.9%)
CIE-LAB	lab(32.79, 29.38, -58.41)
CIE-LCH	lch(32.79, 65.38, 296.70°)
OKLab	oklab(43.21% -0.0003 -0.1686)
OKLCH	oklch(43.21% 0.169 269.9)
XYZ	xyz(10.4687, 7.4400, 39.4045)
Luminance	0.0744 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F42AB #AB982F

analogous

#2F80AB #2F42AB #5A2FAB

triadic

#2F42AB #AB2F42 #42AB2F

tetradic

#2F42AB #AB2F80 #AB982F #2FAB5A

square

#2F42AB #AB2F80 #AB982F #2FAB5A

split-complementary

#2F42AB #AB5A2F #80AB2F

monochromatic

#151D4B #222F7B #2F42AB #4A5ECD #7A89DA

Accessibility & contrast

On white

8.44

#2F42AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#2F42AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F42AB

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F42AB	#FFFFFF	#000000	##FFFFFF
##2F42AB	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AE

Deuteranopia (green-blind)

#0048A9

Tritanopia (blue-blind)

#005D70

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2f42ab;
/* rgb */ color: rgb(47, 66, 171);
/* oklch */ color: oklch(43.2% 0.169 269.9);

Tailwind

colors: {
  custom: {
    50: '#7976c5',
    500: '#2f42ab',
    950: '#000000',
  },
}

SCSS

$custom: #2f42ab;
$custom-light: #7976c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2f42ab",
  "rgb": {
    "r": 47,
    "g": 66,
    "b": 171
  },
  "hsl": {
    "h": 230.806,
    "s": 56.881,
    "l": 42.745
  },
  "oklch": {
    "l": 0.43205,
    "c": 0.16861,
    "h": 269.9
  },
  "luminance": 0.07441
}

Semantic roles & 50–950 ramp

primary

#2F42AB

secondary

#C3B773

accent

#C948E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2F42AB

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

Preview Lab → · Contrast checker → · Palette generator →