#2F3FA9#2F3FA9

#2F3FA9 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.5% C 0.170 H 270.7°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#2F3FA9
RGB	rgb(47, 63, 169)
HSL	hsl(232, 56%, 42%)
HSV	hsv(232, 72%, 66%)
CMYK	cmyk(72.2%, 62.7%, 0%, 33.7%)
CIE-LAB	lab(31.86, 30.61, -58.73)
CIE-LCH	lch(31.86, 66.23, 297.53°)
OKLab	oklab(42.47% 0.002 -0.1696)
OKLCH	oklch(42.47% 0.17 270.7)
XYZ	xyz(10.1088, 7.0229, 38.3512)
Luminance	0.0702 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3FA9 #A9992F

analogous

#2F7CA9 #2F3FA9 #5C2FA9

triadic

#2F3FA9 #A92F3F #3FA92F

tetradic

#2F3FA9 #A92F7C #A9992F #2FA95C

square

#2F3FA9 #A92F7C #A9992F #2FA95C

split-complementary

#2F3FA9 #A95C2F #7CA92F

monochromatic

#141B49 #222D79 #2F3FA9 #495ACC #7985DA

Accessibility & contrast

On white

8.73

#2F3FA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#2F3FA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3FA9

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3FA9	#FFFFFF	#000000	##FFFFFF
##2F3FA9	1.00	8.73	2.40	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AC

Deuteranopia (green-blind)

#0045A7

Tritanopia (blue-blind)

#005A6E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2f3fa9;
/* rgb */ color: rgb(47, 63, 169);
/* oklch */ color: oklch(42.5% 0.170 270.7);

Tailwind

colors: {
  custom: {
    50: '#7974c3',
    500: '#2f3fa9',
    950: '#000000',
  },
}

SCSS

$custom: #2f3fa9;
$custom-light: #7974c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3fa9",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 169
  },
  "hsl": {
    "h": 232.131,
    "s": 56.481,
    "l": 42.353
  },
  "oklch": {
    "l": 0.42465,
    "c": 0.16959,
    "h": 270.7
  },
  "luminance": 0.07024
}

Semantic roles & 50–950 ramp

primary

#2F3FA9

secondary

#C2B772

accent

#CC48E0

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2F3FA9

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

Preview Lab → · Contrast checker → · Palette generator →