#2F3AA5#2F3AA5

#2F3AA5 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.2% C 0.170 H 271.9°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#2F3AA5
RGB	rgb(47, 58, 165)
HSL	hsl(234, 56%, 42%)
HSV	hsv(234, 72%, 65%)
CMYK	cmyk(71.5%, 64.8%, 0%, 35.3%)
CIE-LAB	lab(30.27, 32.40, -58.92)
CIE-LCH	lch(30.27, 67.24, 298.80°)
OKLab	oklab(41.19% 0.0057 -0.1702)
OKLCH	oklch(41.19% 0.17 271.9)
XYZ	xyz(9.4746, 6.3461, 36.3156)
Luminance	0.0635 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3AA5 #A59A2F

analogous

#2F75A5 #2F3AA5 #5F2FA5

triadic

#2F3AA5 #A52F3A #3AA52F

tetradic

#2F3AA5 #A52F75 #A59A2F #2FA55F

square

#2F3AA5 #A52F75 #A59A2F #2FA55F

split-complementary

#2F3AA5 #A55F2F #75A52F

monochromatic

#141946 #212975 #2F3AA5 #4753CB #767FD8

Accessibility & contrast

On white

9.25

#2F3AA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#2F3AA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3AA5

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3AA5	#FFFFFF	#000000	##FFFFFF
##2F3AA5	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA8

Deuteranopia (green-blind)

#0042A3

Tritanopia (blue-blind)

#00566A

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2f3aa5;
/* rgb */ color: rgb(47, 58, 165);
/* oklch */ color: oklch(41.2% 0.170 271.9);

Tailwind

colors: {
  custom: {
    50: '#7870c1',
    500: '#2f3aa5',
    950: '#000000',
  },
}

SCSS

$custom: #2f3aa5;
$custom-light: #7870c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3aa5",
  "rgb": {
    "r": 47,
    "g": 58,
    "b": 165
  },
  "hsl": {
    "h": 234.407,
    "s": 55.66,
    "l": 41.569
  },
  "oklch": {
    "l": 0.41189,
    "c": 0.1703,
    "h": 271.9
  },
  "luminance": 0.06347
}

Semantic roles & 50–950 ramp

primary

#2F3AA5

secondary

#C0B970

accent

#D149DF

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2F3AA5

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

Preview Lab → · Contrast checker → · Palette generator →