#2F3CB3#2F3CB3

#2F3CB3 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.8% C 0.186 H 271.1°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#2F3CB3
RGB	rgb(47, 60, 179)
HSL	hsl(234, 58%, 44%)
HSV	hsv(234, 74%, 70%)
CMYK	cmyk(73.7%, 66.5%, 0%, 29.8%)
CIE-LAB	lab(32.01, 36.15, -64.45)
CIE-LCH	lch(32.01, 73.89, 299.29°)
OKLab	oklab(42.85% 0.0034 -0.1864)
OKLCH	oklch(42.85% 0.186 271.1)
XYZ	xyz(10.9221, 7.0896, 43.4319)
Luminance	0.0709 (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

#2F3CB3 #B3A62F

analogous

#2F7EB3 #2F3CB3 #642FB3

triadic

#2F3CB3 #B32F3C #3CB32F

tetradic

#2F3CB3 #B32F7E #B3A62F #2FB364

square

#2F3CB3 #B32F7E #B3A62F #2FB364

split-complementary

#2F3CB3 #B3642F #7EB32F

monochromatic

#161C52 #222C83 #2F3CB3 #4F5BD1 #7F88DD

Accessibility & contrast

On white

8.68

#2F3CB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#2F3CB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3CB3

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3CB3	#FFFFFF	#000000	##FFFFFF
##2F3CB3	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B7

Deuteranopia (green-blind)

#0045B1

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2f3cb3;
/* rgb */ color: rgb(47, 60, 179);
/* oklch */ color: oklch(42.8% 0.186 271.1);

Tailwind

colors: {
  custom: {
    50: '#7b72cb',
    500: '#2f3cb3',
    950: '#000000',
  },
}

SCSS

$custom: #2f3cb3;
$custom-light: #7b72cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3cb3",
  "rgb": {
    "r": 47,
    "g": 60,
    "b": 179
  },
  "hsl": {
    "h": 234.091,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.42848,
    "c": 0.18639,
    "h": 271.1
  },
  "luminance": 0.07091
}

Semantic roles & 50–950 ramp

primary

#2F3CB3

secondary

#C6BE78

accent

#D246E2

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F3CB3

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

Preview Lab → · Contrast checker → · Palette generator →