#2B3FA4#2B3FA4

#2B3FA4 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.8% C 0.164 H 269.3°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#2B3FA4
RGB	rgb(43, 63, 164)
HSL	hsl(230, 58%, 41%)
HSV	hsv(230, 74%, 64%)
CMYK	cmyk(73.8%, 61.6%, 0%, 35.7%)
CIE-LAB	lab(31.23, 28.25, -56.77)
CIE-LCH	lch(31.23, 63.41, 296.46°)
OKLab	oklab(41.81% -0.002 -0.1639)
OKLCH	oklch(41.81% 0.164 269.3)
XYZ	xyz(9.4723, 6.7480, 35.9180)
Luminance	0.0675 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3FA4 #A4902B

analogous

#2B7BA4 #2B3FA4 #542BA4

triadic

#2B3FA4 #A42B3F #3FA42B

tetradic

#2B3FA4 #A42B7B #A4902B #2BA454

square

#2B3FA4 #A42B7B #A4902B #2BA454

split-complementary

#2B3FA4 #A4542B #7BA42B

monochromatic

#121A43 #1E2C74 #2B3FA4 #3F57CD #7081D9

Accessibility & contrast

On white

8.94

#2B3FA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#2B3FA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3FA4

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3FA4	#FFFFFF	#000000	##FFFFFF
##2B3FA4	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA7

Deuteranopia (green-blind)

#0044A2

Tritanopia (blue-blind)

#00596B

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2b3fa4;
/* rgb */ color: rgb(43, 63, 164);
/* oklch */ color: oklch(41.8% 0.164 269.3);

Tailwind

colors: {
  custom: {
    50: '#7673c0',
    500: '#2b3fa4',
    950: '#000000',
  },
}

SCSS

$custom: #2b3fa4;
$custom-light: #7673c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3fa4",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 164
  },
  "hsl": {
    "h": 230.083,
    "s": 58.454,
    "l": 40.588
  },
  "oklch": {
    "l": 0.41809,
    "c": 0.16393,
    "h": 269.3
  },
  "luminance": 0.06749
}

Semantic roles & 50–950 ramp

primary

#2B3FA4

secondary

#C1B26A

accent

#C846E2

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2B3FA4

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

Preview Lab → · Contrast checker → · Palette generator →