#2F42A0#2F42A0

#2F42A0 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.3% C 0.153 H 269.9°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#2F42A0
RGB	rgb(47, 66, 160)
HSL	hsl(230, 55%, 41%)
HSV	hsv(230, 71%, 63%)
CMYK	cmyk(70.6%, 58.8%, 0%, 37.3%)
CIE-LAB	lab(31.89, 25.31, -53.26)
CIE-LCH	lch(31.89, 58.97, 295.42°)
OKLab	oklab(42.26% -0.0003 -0.1535)
OKLCH	oklch(42.26% 0.153 269.9)
XYZ	xyz(9.4635, 7.0379, 34.1106)
Luminance	0.0704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F42A0 #A08D2F

analogous

#2F7AA0 #2F42A0 #552FA0

triadic

#2F42A0 #A02F42 #42A02F

tetradic

#2F42A0 #A02F7A #A08D2F #2FA055

square

#2F42A0 #A02F7A #A08D2F #2FA055

split-complementary

#2F42A0 #A0552F #7AA02F

monochromatic

#131B41 #212E71 #2F42A0 #445AC8 #7384D6

Accessibility & contrast

On white

8.72

#2F42A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#2F42A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F42A0

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F42A0	#FFFFFF	#000000	##FFFFFF
##2F42A0	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A3

Deuteranopia (green-blind)

#00469E

Tritanopia (blue-blind)

#00596A

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2f42a0;
/* rgb */ color: rgb(47, 66, 160);
/* oklch */ color: oklch(42.3% 0.153 269.9);

Tailwind

colors: {
  custom: {
    50: '#7676bd',
    500: '#2f42a0',
    950: '#000000',
  },
}

SCSS

$custom: #2f42a0;
$custom-light: #7676bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2f42a0",
  "rgb": {
    "r": 47,
    "g": 66,
    "b": 160
  },
  "hsl": {
    "h": 229.912,
    "s": 54.589,
    "l": 40.588
  },
  "oklch": {
    "l": 0.4226,
    "c": 0.15349,
    "h": 269.9
  },
  "luminance": 0.07039
}

Semantic roles & 50–950 ramp

primary

#2F42A0

secondary

#BEB06D

accent

#C54ADE

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2F42A0

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

Preview Lab → · Contrast checker → · Palette generator →