#2F3AB3#2F3AB3

#2F3AB3 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.5% C 0.189 H 271.4°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#2F3AB3
RGB	rgb(47, 58, 179)
HSL	hsl(235, 58%, 44%)
HSV	hsv(235, 74%, 70%)
CMYK	cmyk(73.7%, 67.6%, 0%, 29.8%)
CIE-LAB	lab(31.54, 37.40, -65.22)
CIE-LCH	lch(31.54, 75.18, 299.83°)
OKLab	oklab(42.51% 0.0046 -0.1886)
OKLCH	oklch(42.51% 0.189 271.4)
XYZ	xyz(10.8193, 6.8840, 43.3976)
Luminance	0.0688 (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

#2F3AB3 #B3A82F

analogous

#2F7CB3 #2F3AB3 #662FB3

triadic

#2F3AB3 #B32F3A #3AB32F

tetradic

#2F3AB3 #B32F7C #B3A82F #2FB366

square

#2F3AB3 #B32F7C #B3A82F #2FB366

split-complementary

#2F3AB3 #B3662F #7CB32F

monochromatic

#161B52 #222A83 #2F3AB3 #4F59D1 #7F87DD

Accessibility & contrast

On white

8.83

#2F3AB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#2F3AB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3AB3

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3AB3	#FFFFFF	#000000	##FFFFFF
##2F3AB3	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B7

Deuteranopia (green-blind)

#0044B1

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2f3ab3;
/* rgb */ color: rgb(47, 58, 179);
/* oklch */ color: oklch(42.5% 0.189 271.4);

Tailwind

colors: {
  custom: {
    50: '#7c70cb',
    500: '#2f3ab3',
    950: '#000000',
  },
}

SCSS

$custom: #2f3ab3;
$custom-light: #7c70cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3ab3",
  "rgb": {
    "r": 47,
    "g": 58,
    "b": 179
  },
  "hsl": {
    "h": 235,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.42507,
    "c": 0.18868,
    "h": 271.4
  },
  "luminance": 0.06885
}

Semantic roles & 50–950 ramp

primary

#2F3AB3

secondary

#C6C078

accent

#D546E2

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2F3AB3

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

Preview Lab → · Contrast checker → · Palette generator →