#2F42B0#2F42B0

#2F42B0 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.6% C 0.175 H 269.9°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#2F42B0
RGB	rgb(47, 66, 176)
HSL	hsl(231, 58%, 44%)
HSV	hsv(231, 73%, 69%)
CMYK	cmyk(73.3%, 62.5%, 0%, 31%)
CIE-LAB	lab(33.21, 31.22, -60.70)
CIE-LCH	lch(33.21, 68.26, 297.21°)
OKLab	oklab(43.65% -0.0004 -0.1753)
OKLCH	oklch(43.65% 0.175 269.9)
XYZ	xyz(10.9543, 7.6342, 41.9621)
Luminance	0.0764 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F42B0 #B09D2F

analogous

#2F82B0 #2F42B0 #5C2FB0

triadic

#2F42B0 #B02F42 #42B02F

tetradic

#2F42B0 #B02F82 #B09D2F #2FB05C

square

#2F42B0 #B02F82 #B09D2F #2FB05C

split-complementary

#2F42B0 #B05C2F #82B02F

monochromatic

#151E4F #223080 #2F42B0 #4D60CF #7D8BDC

Accessibility & contrast

On white

8.31

#2F42B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#2F42B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F42B0

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F42B0	#FFFFFF	#000000	##FFFFFF
##2F42B0	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B4

Deuteranopia (green-blind)

#0048AE

Tritanopia (blue-blind)

#005E72

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2f42b0;
/* rgb */ color: rgb(47, 66, 176);
/* oklch */ color: oklch(43.6% 0.175 269.9);

Tailwind

colors: {
  custom: {
    50: '#7a76c9',
    500: '#2f42b0',
    950: '#000000',
  },
}

SCSS

$custom: #2f42b0;
$custom-light: #7a76c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f42b0",
  "rgb": {
    "r": 47,
    "g": 66,
    "b": 176
  },
  "hsl": {
    "h": 231.163,
    "s": 57.848,
    "l": 43.725
  },
  "oklch": {
    "l": 0.43647,
    "c": 0.17534,
    "h": 269.9
  },
  "luminance": 0.07635
}

Semantic roles & 50–950 ramp

primary

#2F42B0

secondary

#C5B976

accent

#CA47E1

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F42B0

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

Preview Lab → · Contrast checker → · Palette generator →