#2B3797#2B3797

#2B3797 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.1% C 0.156 H 271.6°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#2B3797
RGB	rgb(43, 55, 151)
HSL	hsl(233, 56%, 38%)
HSV	hsv(233, 72%, 59%)
CMYK	cmyk(71.5%, 63.6%, 0%, 40.8%)
CIE-LAB	lab(28.06, 28.72, -54.05)
CIE-LCH	lch(28.06, 61.21, 297.99°)
OKLab	oklab(39.12% 0.0043 -0.156)
OKLCH	oklch(39.12% 0.156 271.6)
XYZ	xyz(7.9465, 5.4796, 29.9110)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3797 #978B2B

analogous

#2B6D97 #2B3797 #552B97

triadic

#2B3797 #972B37 #37972B

tetradic

#2B3797 #972B6D #978B2B #2B9755

square

#2B3797 #972B6D #978B2B #2B9755

split-complementary

#2B3797 #97552B #6D972B

monochromatic

#101438 #1D2667 #2B3797 #3948C7 #6874D4

Accessibility & contrast

On white

10.02

#2B3797 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#2B3797 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3797

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3797	#FFFFFF	#000000	##FFFFFF
##2B3797	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479A

Deuteranopia (green-blind)

#003D95

Tritanopia (blue-blind)

#005061

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2b3797;
/* rgb */ color: rgb(43, 55, 151);
/* oklch */ color: oklch(39.1% 0.156 271.6);

Tailwind

colors: {
  custom: {
    50: '#746db6',
    500: '#2b3797',
    950: '#000000',
  },
}

SCSS

$custom: #2b3797;
$custom-light: #746db6;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3797",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 151
  },
  "hsl": {
    "h": 233.333,
    "s": 55.67,
    "l": 38.039
  },
  "oklch": {
    "l": 0.39124,
    "c": 0.15609,
    "h": 271.6
  },
  "luminance": 0.0548
}

Semantic roles & 50–950 ramp

primary

#2B3797

secondary

#BBB163

accent

#CE49DF

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2B3797

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

Preview Lab → · Contrast checker → · Palette generator →