#2F42AA#2F42AA

#2F42AA is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.1% C 0.167 H 269.9°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#2F42AA
RGB	rgb(47, 66, 170)
HSL	hsl(231, 57%, 43%)
HSV	hsv(231, 72%, 67%)
CMYK	cmyk(72.4%, 61.2%, 0%, 33.3%)
CIE-LAB	lab(32.71, 29.01, -57.95)
CIE-LCH	lch(32.71, 64.80, 296.60°)
OKLab	oklab(43.12% -0.0003 -0.1673)
OKLCH	oklch(43.12% 0.167 269.9)
XYZ	xyz(10.3737, 7.4020, 38.9044)
Luminance	0.0740 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F42AA #AA972F

analogous

#2F7FAA #2F42AA #5A2FAA

triadic

#2F42AA #AA2F42 #42AA2F

tetradic

#2F42AA #AA2F7F #AA972F #2FAA5A

square

#2F42AA #AA2F7F #AA972F #2FAA5A

split-complementary

#2F42AA #AA5A2F #7FAA2F

monochromatic

#141D4A #222F7A #2F42AA #495ECD #7988DA

Accessibility & contrast

On white

8.47

#2F42AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#2F42AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F42AA

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F42AA	#FFFFFF	#000000	##FFFFFF
##2F42AA	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AD

Deuteranopia (green-blind)

#0047A8

Tritanopia (blue-blind)

#005C6F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2f42aa;
/* rgb */ color: rgb(47, 66, 170);
/* oklch */ color: oklch(43.1% 0.167 269.9);

Tailwind

colors: {
  custom: {
    50: '#7976c4',
    500: '#2f42aa',
    950: '#000000',
  },
}

SCSS

$custom: #2f42aa;
$custom-light: #7976c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2f42aa",
  "rgb": {
    "r": 47,
    "g": 66,
    "b": 170
  },
  "hsl": {
    "h": 230.732,
    "s": 56.682,
    "l": 42.549
  },
  "oklch": {
    "l": 0.43117,
    "c": 0.16726,
    "h": 269.9
  },
  "luminance": 0.07403
}

Semantic roles & 50–950 ramp

primary

#2F42AA

secondary

#C2B672

accent

#C848E0

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2F42AA

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

Preview Lab → · Contrast checker → · Palette generator →