#2F3CB8#2F3CB8

#2F3CB8 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.3% C 0.193 H 270.9°. Best body text is #FFFFFF at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#2F3CB8
RGB	rgb(47, 60, 184)
HSL	hsl(234, 59%, 45%)
HSV	hsv(234, 74%, 72%)
CMYK	cmyk(74.5%, 67.4%, 0%, 27.8%)
CIE-LAB	lab(32.47, 37.92, -66.66)
CIE-LCH	lch(32.47, 76.69, 299.64°)
OKLab	oklab(43.32% 0.003 -0.1928)
OKLCH	oklch(43.32% 0.193 270.9)
XYZ	xyz(11.4369, 7.2955, 46.1435)
Luminance	0.0730 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3CB8 #B8AB2F

analogous

#2F80B8 #2F3CB8 #672FB8

triadic

#2F3CB8 #B82F3C #3CB82F

tetradic

#2F3CB8 #B82F80 #B8AB2F #2FB867

square

#2F3CB8 #B82F80 #B8AB2F #2FB867

split-complementary

#2F3CB8 #B8672F #80B82F

monochromatic

#161C57 #232C87 #2F3CB8 #525ED3 #828BDF

Accessibility & contrast

On white

8.54

#2F3CB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#2F3CB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3CB8

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3CB8	#FFFFFF	#000000	##FFFFFF
##2F3CB8	1.00	8.54	2.46	8.54
#FFFFFF	8.54	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BC

Deuteranopia (green-blind)

#0046B6

Tritanopia (blue-blind)

#005D75

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2f3cb8;
/* rgb */ color: rgb(47, 60, 184);
/* oklch */ color: oklch(43.3% 0.193 270.9);

Tailwind

colors: {
  custom: {
    50: '#7d72ce',
    500: '#2f3cb8',
    950: '#000000',
  },
}

SCSS

$custom: #2f3cb8;
$custom-light: #7d72ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3cb8",
  "rgb": {
    "r": 47,
    "g": 60,
    "b": 184
  },
  "hsl": {
    "h": 234.307,
    "s": 59.307,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43324,
    "c": 0.19284,
    "h": 270.9
  },
  "luminance": 0.07297
}

Semantic roles & 50–950 ramp

primary

#2F3CB8

secondary

#C8C17B

accent

#D445E2

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2F3CB8

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

Preview Lab → · Contrast checker → · Palette generator →