#2F30A5#2F30A5

#2F30A5 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.5% C 0.182 H 273.9°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#2F30A5
RGB	rgb(47, 48, 165)
HSL	hsl(239, 56%, 42%)
HSV	hsv(239, 72%, 65%)
CMYK	cmyk(71.5%, 70.9%, 0%, 35.3%)
CIE-LAB	lab(27.94, 38.67, -62.75)
CIE-LCH	lch(27.94, 73.71, 301.64°)
OKLab	oklab(39.5% 0.0123 -0.1814)
OKLCH	oklch(39.5% 0.182 273.9)
XYZ	xyz(9.0185, 5.4340, 36.1636)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F30A5 #A5A42F

analogous

#2F6BA5 #2F30A5 #692FA5

triadic

#2F30A5 #A52F30 #30A52F

tetradic

#2F30A5 #A52F6B #A5A42F #2FA569

square

#2F30A5 #A52F6B #A5A42F #2FA569

split-complementary

#2F30A5 #A5692F #6BA52F

monochromatic

#141446 #212275 #2F30A5 #4748CB #7677D8

Accessibility & contrast

On white

10.06

#2F30A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#2F30A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F30A5

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F30A5	#FFFFFF	#000000	##FFFFFF
##2F30A5	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A9

Deuteranopia (green-blind)

#003CA3

Tritanopia (blue-blind)

#005067

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2f30a5;
/* rgb */ color: rgb(47, 48, 165);
/* oklch */ color: oklch(39.5% 0.182 273.9);

Tailwind

colors: {
  custom: {
    50: '#7969c1',
    500: '#2f30a5',
    950: '#000000',
  },
}

SCSS

$custom: #2f30a5;
$custom-light: #7969c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f30a5",
  "rgb": {
    "r": 47,
    "g": 48,
    "b": 165
  },
  "hsl": {
    "h": 239.492,
    "s": 55.66,
    "l": 41.569
  },
  "oklch": {
    "l": 0.39496,
    "c": 0.18185,
    "h": 273.9
  },
  "luminance": 0.05435
}

Semantic roles & 50–950 ramp

primary

#2F30A5

secondary

#C0BF70

accent

#DE49DF

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2F30A5

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

Preview Lab → · Contrast checker → · Palette generator →