#2B3B9B#2B3B9B

#2B3B9B is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.157 H 270.4°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#2B3B9B
RGB	rgb(43, 59, 155)
HSL	hsl(231, 57%, 39%)
HSV	hsv(231, 72%, 61%)
CMYK	cmyk(72.3%, 61.9%, 0%, 39.2%)
CIE-LAB	lab(29.43, 27.55, -54.25)
CIE-LCH	lch(29.43, 60.85, 296.92°)
OKLab	oklab(40.24% 0.0011 -0.1566)
OKLCH	oklch(40.24% 0.157 270.4)
XYZ	xyz(8.4746, 6.0072, 31.7169)
Luminance	0.0601 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3B9B #9B8B2B

analogous

#2B739B #2B3B9B #532B9B

triadic

#2B3B9B #9B2B3B #3B9B2B

tetradic

#2B3B9B #9B2B73 #9B8B2B #2B9B53

square

#2B3B9B #9B2B73 #9B8B2B #2B9B53

split-complementary

#2B3B9B #9B532B #739B2B

monochromatic

#10173B #1E296B #2B3B9B #3B4FC9 #6B7AD6

Accessibility & contrast

On white

9.54

#2B3B9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#2B3B9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3B9B

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3B9B	#FFFFFF	#000000	##FFFFFF
##2B3B9B	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9E

Deuteranopia (green-blind)

#004099

Tritanopia (blue-blind)

#005365

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2b3b9b;
/* rgb */ color: rgb(43, 59, 155);
/* oklch */ color: oklch(40.2% 0.157 270.4);

Tailwind

colors: {
  custom: {
    50: '#7470b9',
    500: '#2b3b9b',
    950: '#000000',
  },
}

SCSS

$custom: #2b3b9b;
$custom-light: #7470b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3b9b",
  "rgb": {
    "r": 43,
    "g": 59,
    "b": 155
  },
  "hsl": {
    "h": 231.429,
    "s": 56.566,
    "l": 38.824
  },
  "oklch": {
    "l": 0.40243,
    "c": 0.15658,
    "h": 270.4
  },
  "luminance": 0.06008
}

Semantic roles & 50–950 ramp

primary

#2B3B9B

secondary

#BCB065

accent

#CA48E0

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #2B3B9B

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

Preview Lab → · Contrast checker → · Palette generator →