#2B3A9F#2B3A9F

#2B3A9F is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.4% C 0.163 H 270.6°. Best body text is #FFFFFF at 9.51:1 contrast (WCAG AA passes).

Color values

HEX	#2B3A9F
RGB	rgb(43, 58, 159)
HSL	hsl(232, 57%, 40%)
HSV	hsv(232, 73%, 62%)
CMYK	cmyk(73%, 63.5%, 0%, 37.6%)
CIE-LAB	lab(29.52, 29.70, -56.54)
CIE-LCH	lch(29.52, 63.86, 297.71°)
OKLab	oklab(40.41% 0.0018 -0.1633)
OKLCH	oklch(40.41% 0.163 270.6)
XYZ	xyz(8.7652, 6.0420, 33.4985)
Luminance	0.0604 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3A9F #9F902B

analogous

#2B749F #2B3A9F #562B9F

triadic

#2B3A9F #9F2B3A #3A9F2B

tetradic

#2B3A9F #9F2B74 #9F902B #2B9F56

square

#2B3A9F #9F2B74 #9F902B #2B9F56

split-complementary

#2B3A9F #9F562B #749F2B

monochromatic

#11173F #1E286F #2B3A9F #3D4FCA #6D7BD7

Accessibility & contrast

On white

9.51

#2B3A9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#2B3A9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3A9F

9.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3A9F	#FFFFFF	#000000	##FFFFFF
##2B3A9F	1.00	9.51	2.21	9.51
#FFFFFF	9.51	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA2

Deuteranopia (green-blind)

#00409D

Tritanopia (blue-blind)

#005467

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2b3a9f;
/* rgb */ color: rgb(43, 58, 159);
/* oklch */ color: oklch(40.4% 0.163 270.6);

Tailwind

colors: {
  custom: {
    50: '#7570bc',
    500: '#2b3a9f',
    950: '#000000',
  },
}

SCSS

$custom: #2b3a9f;
$custom-light: #7570bc;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3a9f",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 159
  },
  "hsl": {
    "h": 232.241,
    "s": 57.426,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40414,
    "c": 0.1633,
    "h": 270.6
  },
  "luminance": 0.06043
}

Semantic roles & 50–950 ramp

primary

#2B3A9F

secondary

#BEB367

accent

#CD47E1

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2B3A9F

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

Preview Lab → · Contrast checker → · Palette generator →