#2B4381#2B4381

#2B4381 is a dark, moderate blue. Relative luminance 0.061; OKLCH L 39.8% C 0.108 H 265.8°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#2B4381
RGB	rgb(43, 67, 129)
HSL	hsl(223, 50%, 34%)
HSV	hsv(223, 67%, 51%)
CMYK	cmyk(66.7%, 48.1%, 0%, 49.4%)
CIE-LAB	lab(29.69, 12.27, -37.82)
CIE-LCH	lch(29.69, 39.76, 287.98°)
OKLab	oklab(39.82% -0.008 -0.1081)
OKLCH	oklch(39.82% 0.108 265.8)
XYZ	xyz(6.9645, 6.1122, 21.5774)
Luminance	0.0611 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4381 #81692B

analogous

#2B6E81 #2B4381 #3E2B81

triadic

#2B4381 #812B43 #43812B

tetradic

#2B4381 #812B6E #81692B #2B813E

square

#2B4381 #812B6E #81692B #2B813E

split-complementary

#2B4381 #813E2B #6E812B

monochromatic

#0C1325 #1C2B53 #2B4381 #3A5BAF #5D7BC9

Accessibility & contrast

On white

9.45

#2B4381 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#2B4381 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4381

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4381	#FFFFFF	#000000	##FFFFFF
##2B4381	1.00	9.45	2.22	9.45
#FFFFFF	9.45	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#244A83

Deuteranopia (green-blind)

#144280

Tritanopia (blue-blind)

#00515B

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2b4381;
/* rgb */ color: rgb(43, 67, 129);
/* oklch */ color: oklch(39.8% 0.108 265.8);

Tailwind

colors: {
  custom: {
    50: '#6e76a6',
    500: '#2b4381',
    950: '#000000',
  },
}

SCSS

$custom: #2b4381;
$custom-light: #6e76a6;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4381",
  "rgb": {
    "r": 43,
    "g": 67,
    "b": 129
  },
  "hsl": {
    "h": 223.256,
    "s": 50,
    "l": 33.725
  },
  "oklch": {
    "l": 0.39821,
    "c": 0.10844,
    "h": 265.8
  },
  "luminance": 0.06113
}

Semantic roles & 50–950 ramp

primary

#2B4381

secondary

#AF9759

accent

#B34EDA

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #2B4381

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

Preview Lab → · Contrast checker → · Palette generator →