#2B3A79#2B3A79

#2B3A79 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.2% C 0.109 H 270.3°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#2B3A79
RGB	rgb(43, 58, 121)
HSL	hsl(228, 48%, 32%)
HSV	hsv(228, 64%, 47%)
CMYK	cmyk(64.5%, 52.1%, 0%, 52.5%)
CIE-LAB	lab(26.50, 15.42, -37.93)
CIE-LCH	lch(26.50, 40.94, 292.13°)
OKLab	oklab(37.22% 0.0006 -0.1086)
OKLCH	oklch(37.22% 0.109 270.3)
XYZ	xyz(5.9593, 4.9197, 18.7210)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3A79 #796A2B

analogous

#2B6179 #2B3A79 #432B79

triadic

#2B3A79 #792B3A #3A792B

tetradic

#2B3A79 #792B61 #796A2B #2B7943

square

#2B3A79 #792B61 #796A2B #2B7943

split-complementary

#2B3A79 #79432B #61792B

monochromatic

#0B0F1F #1B244C #2B3A79 #3B50A6 #5A6EC4

Accessibility & contrast

On white

10.58

#2B3A79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#2B3A79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3A79

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3A79	#FFFFFF	#000000	##FFFFFF
##2B3A79	1.00	10.58	1.98	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18427B

Deuteranopia (green-blind)

#063B78

Tritanopia (blue-blind)

#004953

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2b3a79;
/* rgb */ color: rgb(43, 58, 121);
/* oklch */ color: oklch(37.2% 0.109 270.3);

Tailwind

colors: {
  custom: {
    50: '#6d6fa0',
    500: '#2b3a79',
    950: '#000000',
  },
}

SCSS

$custom: #2b3a79;
$custom-light: #6d6fa0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3a79",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 121
  },
  "hsl": {
    "h": 228.462,
    "s": 47.561,
    "l": 32.157
  },
  "oklch": {
    "l": 0.37216,
    "c": 0.1086,
    "h": 270.3
  },
  "luminance": 0.0492
}

Semantic roles & 50–950 ramp

primary

#2B3A79

secondary

#AA9A56

accent

#BD51D7

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #2B3A79

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

Preview Lab → · Contrast checker → · Palette generator →