#2F3AA6#2F3AA6

#2F3AA6 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.3% C 0.172 H 271.9°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#2F3AA6
RGB	rgb(47, 58, 166)
HSL	hsl(234, 56%, 42%)
HSV	hsv(234, 72%, 65%)
CMYK	cmyk(71.7%, 65.1%, 0%, 34.9%)
CIE-LAB	lab(30.36, 32.76, -59.38)
CIE-LCH	lch(30.36, 67.82, 298.88°)
OKLab	oklab(41.28% 0.0057 -0.1715)
OKLCH	oklch(41.28% 0.172 271.9)
XYZ	xyz(9.5660, 6.3827, 36.7968)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3AA6 #A69B2F

analogous

#2F76A6 #2F3AA6 #602FA6

triadic

#2F3AA6 #A62F3A #3AA62F

tetradic

#2F3AA6 #A62F76 #A69B2F #2FA660

square

#2F3AA6 #A62F76 #A69B2F #2FA660

split-complementary

#2F3AA6 #A6602F #76A62F

monochromatic

#141947 #212976 #2F3AA6 #4753CB #7780D8

Accessibility & contrast

On white

9.22

#2F3AA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#2F3AA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3AA6

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3AA6	#FFFFFF	#000000	##FFFFFF
##2F3AA6	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA9

Deuteranopia (green-blind)

#0042A4

Tritanopia (blue-blind)

#00566A

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2f3aa6;
/* rgb */ color: rgb(47, 58, 166);
/* oklch */ color: oklch(41.3% 0.172 271.9);

Tailwind

colors: {
  custom: {
    50: '#7870c1',
    500: '#2f3aa6',
    950: '#000000',
  },
}

SCSS

$custom: #2f3aa6;
$custom-light: #7870c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3aa6",
  "rgb": {
    "r": 47,
    "g": 58,
    "b": 166
  },
  "hsl": {
    "h": 234.454,
    "s": 55.869,
    "l": 41.765
  },
  "oklch": {
    "l": 0.41281,
    "c": 0.17163,
    "h": 271.9
  },
  "luminance": 0.06384
}

Semantic roles & 50–950 ramp

primary

#2F3AA6

secondary

#C1B970

accent

#D149DF

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2F3AA6

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

Preview Lab → · Contrast checker → · Palette generator →