#2B3091#2B3091

#2B3091 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.3% C 0.157 H 273.6°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#2B3091
RGB	rgb(43, 48, 145)
HSL	hsl(237, 54%, 37%)
HSV	hsv(237, 70%, 57%)
CMYK	cmyk(70.3%, 66.9%, 0%, 43.1%)
CIE-LAB	lab(25.78, 31.12, -54.10)
CIE-LCH	lch(25.78, 62.41, 299.91°)
OKLab	oklab(37.29% 0.0099 -0.1562)
OKLCH	oklch(37.29% 0.157 273.6)
XYZ	xyz(7.1623, 4.6712, 27.3067)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3091 #918C2B

analogous

#2B6391 #2B3091 #592B91

triadic

#2B3091 #912B30 #30912B

tetradic

#2B3091 #912B63 #918C2B #2B9159

square

#2B3091 #912B63 #918C2B #2B9159

split-complementary

#2B3091 #91592B #63912B

monochromatic

#0F1133 #1D2062 #2B3091 #3940C0 #656AD1

Accessibility & contrast

On white

10.86

#2B3091 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#2B3091 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3091

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3091	#FFFFFF	#000000	##FFFFFF
##2B3091	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004294

Deuteranopia (green-blind)

#00388F

Tritanopia (blue-blind)

#00495C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2b3091;
/* rgb */ color: rgb(43, 48, 145);
/* oklch */ color: oklch(37.3% 0.157 273.6);

Tailwind

colors: {
  custom: {
    50: '#7368b2',
    500: '#2b3091',
    950: '#000000',
  },
}

SCSS

$custom: #2b3091;
$custom-light: #7368b2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3091",
  "rgb": {
    "r": 43,
    "g": 48,
    "b": 145
  },
  "hsl": {
    "h": 237.059,
    "s": 54.255,
    "l": 36.863
  },
  "oklch": {
    "l": 0.37285,
    "c": 0.15652,
    "h": 273.6
  },
  "luminance": 0.04672
}

Semantic roles & 50–950 ramp

primary

#2B3091

secondary

#B8B360

accent

#D64ADE

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #2B3091

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

Preview Lab → · Contrast checker → · Palette generator →