#2B3987#2B3987

#2B3987 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.1% C 0.131 H 271.1°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#2B3987
RGB	rgb(43, 57, 135)
HSL	hsl(231, 52%, 35%)
HSV	hsv(231, 68%, 53%)
CMYK	cmyk(68.1%, 57.8%, 0%, 47.1%)
CIE-LAB	lab(27.27, 21.40, -45.47)
CIE-LCH	lch(27.27, 50.25, 295.20°)
OKLab	oklab(38.12% 0.0026 -0.1308)
OKLCH	oklch(38.12% 0.131 271.1)
XYZ	xyz(6.8311, 5.1885, 23.5585)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3987 #87792B

analogous

#2B6787 #2B3987 #4B2B87

triadic

#2B3987 #872B39 #39872B

tetradic

#2B3987 #872B67 #87792B #2B874B

square

#2B3987 #872B67 #87792B #2B874B

split-complementary

#2B3987 #874B2B #67872B

monochromatic

#0D122A #1C2559 #2B3987 #3A4DB5 #6071CC

Accessibility & contrast

On white

10.31

#2B3987 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2B3987 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3987

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3987	#FFFFFF	#000000	##FFFFFF
##2B3987	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458A

Deuteranopia (green-blind)

#003C85

Tritanopia (blue-blind)

#004C5A

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2b3987;
/* rgb */ color: rgb(43, 57, 135);
/* oklch */ color: oklch(38.1% 0.131 271.1);

Tailwind

colors: {
  custom: {
    50: '#706fab',
    500: '#2b3987',
    950: '#000000',
  },
}

SCSS

$custom: #2b3987;
$custom-light: #706fab;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3987",
  "rgb": {
    "r": 43,
    "g": 57,
    "b": 135
  },
  "hsl": {
    "h": 230.87,
    "s": 51.685,
    "l": 34.902
  },
  "oklch": {
    "l": 0.3812,
    "c": 0.13084,
    "h": 271.1
  },
  "luminance": 0.05189
}

Semantic roles & 50–950 ramp

primary

#2B3987

secondary

#B2A55B

accent

#C54DDB

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #2B3987

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

Preview Lab → · Contrast checker → · Palette generator →