#2B3AAA#2B3AAA

#2B3AAA is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.4% C 0.178 H 270.4°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#2B3AAA
RGB	rgb(43, 58, 170)
HSL	hsl(233, 60%, 42%)
HSV	hsv(233, 75%, 67%)
CMYK	cmyk(74.7%, 65.9%, 0%, 33.3%)
CIE-LAB	lab(30.50, 33.73, -61.56)
CIE-LCH	lch(30.50, 70.20, 298.72°)
OKLab	oklab(41.44% 0.0012 -0.178)
OKLCH	oklch(41.44% 0.178 270.4)
XYZ	xyz(9.7625, 6.4410, 38.7511)
Luminance	0.0644 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.72

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3AAA #AA9B2B

analogous

#2B7AAA #2B3AAA #5B2BAA

triadic

#2B3AAA #AA2B3A #3AAA2B

tetradic

#2B3AAA #AA2B7A #AA9B2B #2BAA5B

square

#2B3AAA #AA2B7A #AA9B2B #2BAA5B

split-complementary

#2B3AAA #AA5B2B #7AAA2B

monochromatic

#121948 #1F2979 #2B3AAA #4353CF #7480DC

Accessibility & contrast

On white

9.18

#2B3AAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#2B3AAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3AAA

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3AAA	#FFFFFF	#000000	##FFFFFF
##2B3AAA	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAE

Deuteranopia (green-blind)

#0042A8

Tritanopia (blue-blind)

#00586D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2b3aaa;
/* rgb */ color: rgb(43, 58, 170);
/* oklch */ color: oklch(41.4% 0.178 270.4);

Tailwind

colors: {
  custom: {
    50: '#7870c4',
    500: '#2b3aaa',
    950: '#000000',
  },
}

SCSS

$custom: #2b3aaa;
$custom-light: #7870c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3aaa",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 170
  },
  "hsl": {
    "h": 232.913,
    "s": 59.624,
    "l": 41.765
  },
  "oklch": {
    "l": 0.41436,
    "c": 0.17802,
    "h": 270.4
  },
  "luminance": 0.06442
}

Semantic roles & 50–950 ramp

primary

#2B3AAA

secondary

#C3B96E

accent

#D045E3

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2B3AAA

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

Preview Lab → · Contrast checker → · Palette generator →