#2B3B79#2B3B79

#2B3B79 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.4% C 0.107 H 269.7°. Best body text is #FFFFFF at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#2B3B79
RGB	rgb(43, 59, 121)
HSL	hsl(228, 48%, 32%)
HSV	hsv(228, 64%, 47%)
CMYK	cmyk(64.5%, 51.2%, 0%, 52.5%)
CIE-LAB	lab(26.80, 14.73, -37.46)
CIE-LCH	lch(26.80, 40.25, 291.47°)
OKLab	oklab(37.44% -0.0005 -0.1072)
OKLCH	oklch(37.44% 0.107 269.7)
XYZ	xyz(6.0103, 5.0215, 18.7380)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3B79 #79692B

analogous

#2B6279 #2B3B79 #422B79

triadic

#2B3B79 #792B3B #3B792B

tetradic

#2B3B79 #792B62 #79692B #2B7942

square

#2B3B79 #792B62 #79692B #2B7942

split-complementary

#2B3B79 #79422B #62792B

monochromatic

#0B0F1F #1B254C #2B3B79 #3B51A6 #5A70C4

Accessibility & contrast

On white

10.48

#2B3B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#2B3B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3B79

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3B79	#FFFFFF	#000000	##FFFFFF
##2B3B79	1.00	10.48	2.00	10.48
#FFFFFF	10.48	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A437B

Deuteranopia (green-blind)

#0A3C78

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2b3b79;
/* rgb */ color: rgb(43, 59, 121);
/* oklch */ color: oklch(37.4% 0.107 269.7);

Tailwind

colors: {
  custom: {
    50: '#6d70a0',
    500: '#2b3b79',
    950: '#000000',
  },
}

SCSS

$custom: #2b3b79;
$custom-light: #6d70a0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3b79",
  "rgb": {
    "r": 43,
    "g": 59,
    "b": 121
  },
  "hsl": {
    "h": 227.692,
    "s": 47.561,
    "l": 32.157
  },
  "oklch": {
    "l": 0.37437,
    "c": 0.10721,
    "h": 269.7
  },
  "luminance": 0.05022
}

Semantic roles & 50–950 ramp

primary

#2B3B79

secondary

#AA9956

accent

#BC51D7

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #2B3B79

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

Preview Lab → · Contrast checker → · Palette generator →