#2B3FA1#2B3FA1

#2B3FA1 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.5% C 0.160 H 269.3°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#2B3FA1
RGB	rgb(43, 63, 161)
HSL	hsl(230, 58%, 40%)
HSV	hsv(230, 73%, 63%)
CMYK	cmyk(73.3%, 60.9%, 0%, 36.9%)
CIE-LAB	lab(30.98, 27.13, -55.37)
CIE-LCH	lch(30.98, 61.66, 296.11°)
OKLab	oklab(41.55% -0.0019 -0.1598)
OKLCH	oklch(41.55% 0.16 269.3)
XYZ	xyz(9.2046, 6.6409, 34.5080)
Luminance	0.0664 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3FA1 #A18D2B

analogous

#2B7AA1 #2B3FA1 #522BA1

triadic

#2B3FA1 #A12B3F #3FA12B

tetradic

#2B3FA1 #A12B7A #A18D2B #2BA152

square

#2B3FA1 #A12B7A #A18D2B #2BA152

split-complementary

#2B3FA1 #A1522B #7AA12B

monochromatic

#111940 #1E2C71 #2B3FA1 #3E56CB #6E80D8

Accessibility & contrast

On white

9.02

#2B3FA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#2B3FA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3FA1

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3FA1	#FFFFFF	#000000	##FFFFFF
##2B3FA1	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA4

Deuteranopia (green-blind)

#00449F

Tritanopia (blue-blind)

#00586A

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2b3fa1;
/* rgb */ color: rgb(43, 63, 161);
/* oklch */ color: oklch(41.5% 0.160 269.3);

Tailwind

colors: {
  custom: {
    50: '#7573be',
    500: '#2b3fa1',
    950: '#000000',
  },
}

SCSS

$custom: #2b3fa1;
$custom-light: #7573be;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3fa1",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 161
  },
  "hsl": {
    "h": 229.831,
    "s": 57.843,
    "l": 40
  },
  "oklch": {
    "l": 0.41545,
    "c": 0.15982,
    "h": 269.3
  },
  "luminance": 0.06642
}

Semantic roles & 50–950 ramp

primary

#2B3FA1

secondary

#BFB169

accent

#C747E1

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2B3FA1

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

Preview Lab → · Contrast checker → · Palette generator →