#2B3AA4#2B3AA4

#2B3AA4 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.9% C 0.170 H 270.5°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#2B3AA4
RGB	rgb(43, 58, 164)
HSL	hsl(233, 58%, 41%)
HSV	hsv(233, 74%, 64%)
CMYK	cmyk(73.8%, 64.6%, 0%, 35.7%)
CIE-LAB	lab(29.96, 31.54, -58.84)
CIE-LCH	lch(29.96, 66.76, 298.19°)
OKLab	oklab(40.87% 0.0015 -0.17)
OKLCH	oklch(40.87% 0.17 270.5)
XYZ	xyz(9.2079, 6.2191, 35.8299)
Luminance	0.0622 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3AA4 #A4952B

analogous

#2B76A4 #2B3AA4 #582BA4

triadic

#2B3AA4 #A42B3A #3AA42B

tetradic

#2B3AA4 #A42B76 #A4952B #2BA458

square

#2B3AA4 #A42B76 #A4952B #2BA458

split-complementary

#2B3AA4 #A4582B #76A42B

monochromatic

#121843 #1E2974 #2B3AA4 #3F51CD #707DD9

Accessibility & contrast

On white

9.36

#2B3AA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#2B3AA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3AA4

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3AA4	#FFFFFF	#000000	##FFFFFF
##2B3AA4	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA7

Deuteranopia (green-blind)

#0041A2

Tritanopia (blue-blind)

#005669

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2b3aa4;
/* rgb */ color: rgb(43, 58, 164);
/* oklch */ color: oklch(40.9% 0.170 270.5);

Tailwind

colors: {
  custom: {
    50: '#7670c0',
    500: '#2b3aa4',
    950: '#000000',
  },
}

SCSS

$custom: #2b3aa4;
$custom-light: #7670c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3aa4",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 164
  },
  "hsl": {
    "h": 232.562,
    "s": 58.454,
    "l": 40.588
  },
  "oklch": {
    "l": 0.40874,
    "c": 0.17005,
    "h": 270.5
  },
  "luminance": 0.0622
}

Semantic roles & 50–950 ramp

primary

#2B3AA4

secondary

#C1B66A

accent

#CE46E2

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2B3AA4

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

Preview Lab → · Contrast checker → · Palette generator →