#2B3CA1#2B3CA1

#2B3CA1 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.0% C 0.164 H 270.1°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#2B3CA1
RGB	rgb(43, 60, 161)
HSL	hsl(231, 58%, 40%)
HSV	hsv(231, 73%, 63%)
CMYK	cmyk(73.3%, 62.7%, 0%, 36.9%)
CIE-LAB	lab(30.20, 29.12, -56.63)
CIE-LCH	lch(30.20, 63.68, 297.21°)
OKLab	oklab(40.97% 0.0003 -0.1636)
OKLCH	oklch(40.97% 0.164 270.1)
XYZ	xyz(9.0429, 6.3176, 34.4541)
Luminance	0.0632 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3CA1 #A1902B

analogous

#2B77A1 #2B3CA1 #552BA1

triadic

#2B3CA1 #A12B3C #3CA12B

tetradic

#2B3CA1 #A12B77 #A1902B #2BA155

square

#2B3CA1 #A12B77 #A1902B #2BA155

split-complementary

#2B3CA1 #A1552B #77A12B

monochromatic

#111840 #1E2A71 #2B3CA1 #3E52CB #6E7DD8

Accessibility & contrast

On white

9.28

#2B3CA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#2B3CA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3CA1

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3CA1	#FFFFFF	#000000	##FFFFFF
##2B3CA1	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA4

Deuteranopia (green-blind)

#00429F

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2b3ca1;
/* rgb */ color: rgb(43, 60, 161);
/* oklch */ color: oklch(41.0% 0.164 270.1);

Tailwind

colors: {
  custom: {
    50: '#7671be',
    500: '#2b3ca1',
    950: '#000000',
  },
}

SCSS

$custom: #2b3ca1;
$custom-light: #7671be;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3ca1",
  "rgb": {
    "r": 43,
    "g": 60,
    "b": 161
  },
  "hsl": {
    "h": 231.356,
    "s": 57.843,
    "l": 40
  },
  "oklch": {
    "l": 0.40971,
    "c": 0.16356,
    "h": 270.1
  },
  "luminance": 0.06319
}

Semantic roles & 50–950 ramp

primary

#2B3CA1

secondary

#BFB369

accent

#CB47E1

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2B3CA1

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

Preview Lab → · Contrast checker → · Palette generator →