#2B3A91#2B3A91

#2B3A91 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.2% C 0.144 H 270.8°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#2B3A91
RGB	rgb(43, 58, 145)
HSL	hsl(231, 54%, 37%)
HSV	hsv(231, 70%, 57%)
CMYK	cmyk(70.3%, 60%, 0%, 43.1%)
CIE-LAB	lab(28.34, 24.48, -49.92)
CIE-LCH	lch(28.34, 55.60, 296.12°)
OKLab	oklab(39.17% 0.002 -0.1439)
OKLCH	oklch(39.17% 0.144 270.8)
XYZ	xyz(7.6184, 5.5833, 27.4588)
Luminance	0.0558 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3A91 #91822B

analogous

#2B6D91 #2B3A91 #4F2B91

triadic

#2B3A91 #912B3A #3A912B

tetradic

#2B3A91 #912B6D #91822B #2B914F

square

#2B3A91 #912B6D #91822B #2B914F

split-complementary

#2B3A91 #914F2B #6D912B

monochromatic

#0F1433 #1D2762 #2B3A91 #394DC0 #6575D1

Accessibility & contrast

On white

9.92

#2B3A91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#2B3A91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3A91

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3A91	#FFFFFF	#000000	##FFFFFF
##2B3A91	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004894

Deuteranopia (green-blind)

#003E8F

Tritanopia (blue-blind)

#00505F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2b3a91;
/* rgb */ color: rgb(43, 58, 145);
/* oklch */ color: oklch(39.2% 0.144 270.8);

Tailwind

colors: {
  custom: {
    50: '#7270b2',
    500: '#2b3a91',
    950: '#000000',
  },
}

SCSS

$custom: #2b3a91;
$custom-light: #7270b2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3a91",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 145
  },
  "hsl": {
    "h": 231.176,
    "s": 54.255,
    "l": 36.863
  },
  "oklch": {
    "l": 0.39171,
    "c": 0.14388,
    "h": 270.8
  },
  "luminance": 0.05584
}

Semantic roles & 50–950 ramp

primary

#2B3A91

secondary

#B8AB60

accent

#C84ADE

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2B3A91

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

Preview Lab → · Contrast checker → · Palette generator →