#2F42B9#2F42B9

#2F42B9 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.5% C 0.187 H 269.8°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#2F42B9
RGB	rgb(47, 66, 185)
HSL	hsl(232, 59%, 45%)
HSV	hsv(232, 75%, 73%)
CMYK	cmyk(74.6%, 64.3%, 0%, 27.5%)
CIE-LAB	lab(33.99, 34.49, -64.76)
CIE-LCH	lch(33.99, 73.37, 298.04°)
OKLab	oklab(44.46% -0.0007 -0.1872)
OKLCH	oklch(44.46% 0.187 269.8)
XYZ	xyz(11.8745, 8.0023, 46.8083)
Luminance	0.0800 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.65

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F42B9 #B9A62F

analogous

#2F87B9 #2F42B9 #612FB9

triadic

#2F42B9 #B92F42 #42B92F

tetradic

#2F42B9 #B92F87 #B9A62F #2FB961

square

#2F42B9 #B92F87 #B9A62F #2FB961

split-complementary

#2F42B9 #B9612F #87B92F

monochromatic

#161F57 #233188 #2F42B9 #5264D3 #8390DF

Accessibility & contrast

On white

8.07

#2F42B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#2F42B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F42B9

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F42B9	#FFFFFF	#000000	##FFFFFF
##2F42B9	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BD

Deuteranopia (green-blind)

#004AB7

Tritanopia (blue-blind)

#006177

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2f42b9;
/* rgb */ color: rgb(47, 66, 185);
/* oklch */ color: oklch(44.5% 0.187 269.8);

Tailwind

colors: {
  custom: {
    50: '#7c76cf',
    500: '#2f42b9',
    950: '#000000',
  },
}

SCSS

$custom: #2f42b9;
$custom-light: #7c76cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2f42b9",
  "rgb": {
    "r": 47,
    "g": 66,
    "b": 185
  },
  "hsl": {
    "h": 231.739,
    "s": 59.483,
    "l": 45.49
  },
  "oklch": {
    "l": 0.4446,
    "c": 0.18723,
    "h": 269.8
  },
  "luminance": 0.08004
}

Semantic roles & 50–950 ramp

primary

#2F42B9

secondary

#C9BE7B

accent

#CD45E3

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2F42B9

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

Preview Lab → · Contrast checker → · Palette generator →