#2F34AB#2F34AB

#2F34AB is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.7% C 0.185 H 272.8°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#2F34AB
RGB	rgb(47, 52, 171)
HSL	hsl(238, 57%, 43%)
HSV	hsv(238, 73%, 67%)
CMYK	cmyk(72.5%, 69.6%, 0%, 32.9%)
CIE-LAB	lab(29.41, 38.31, -63.94)
CIE-LCH	lch(29.41, 74.54, 300.93°)
OKLab	oklab(40.74% 0.0091 -0.1849)
OKLCH	oklch(40.74% 0.185 272.8)
XYZ	xyz(9.7485, 5.9996, 39.1645)
Luminance	0.0600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.30

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F34AB #ABA62F

analogous

#2F72AB #2F34AB #682FAB

triadic

#2F34AB #AB2F34 #34AB2F

tetradic

#2F34AB #AB2F72 #ABA62F #2FAB68

square

#2F34AB #AB2F72 #ABA62F #2FAB68

split-complementary

#2F34AB #AB682F #72AB2F

monochromatic

#15174B #22257B #2F34AB #4A4FCD #7A7EDA

Accessibility & contrast

On white

9.54

#2F34AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#2F34AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F34AB

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F34AB	#FFFFFF	#000000	##FFFFFF
##2F34AB	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BAF

Deuteranopia (green-blind)

#003FA9

Tritanopia (blue-blind)

#00556B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2f34ab;
/* rgb */ color: rgb(47, 52, 171);
/* oklch */ color: oklch(40.7% 0.185 272.8);

Tailwind

colors: {
  custom: {
    50: '#7a6cc5',
    500: '#2f34ab',
    950: '#000000',
  },
}

SCSS

$custom: #2f34ab;
$custom-light: #7a6cc5;
$custom-dark: #000000;

JSON

{
  "hex": "#2f34ab",
  "rgb": {
    "r": 47,
    "g": 52,
    "b": 171
  },
  "hsl": {
    "h": 237.581,
    "s": 56.881,
    "l": 42.745
  },
  "oklch": {
    "l": 0.40735,
    "c": 0.18512,
    "h": 272.8
  },
  "luminance": 0.06001
}

Semantic roles & 50–950 ramp

primary

#2F34AB

secondary

#C3C073

accent

#DA48E0

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2F34AB

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

Preview Lab → · Contrast checker → · Palette generator →