#2B3EB0#2B3EB0

#2B3EB0 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.181 H 269.5°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#2B3EB0
RGB	rgb(43, 62, 176)
HSL	hsl(231, 61%, 43%)
HSV	hsv(231, 76%, 69%)
CMYK	cmyk(75.6%, 64.8%, 0%, 31%)
CIE-LAB	lab(32.02, 33.35, -62.66)
CIE-LCH	lch(32.02, 70.98, 298.02°)
OKLab	oklab(42.71% -0.0016 -0.1812)
OKLCH	oklch(42.71% 0.181 269.5)
XYZ	xyz(10.5527, 7.0923, 41.8787)
Luminance	0.0709 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3EB0 #B09D2B

analogous

#2B80B0 #2B3EB0 #5B2BB0

triadic

#2B3EB0 #B02B3E #3EB02B

tetradic

#2B3EB0 #B02B80 #B09D2B #2BB05B

square

#2B3EB0 #B02B80 #B09D2B #2BB05B

split-complementary

#2B3EB0 #B05B2B #80B02B

monochromatic

#131B4E #1F2D7F #2B3EB0 #465AD2 #7886DE

Accessibility & contrast

On white

8.68

#2B3EB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#2B3EB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3EB0

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3EB0	#FFFFFF	#000000	##FFFFFF
##2B3EB0	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B4

Deuteranopia (green-blind)

#0045AE

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2b3eb0;
/* rgb */ color: rgb(43, 62, 176);
/* oklch */ color: oklch(42.7% 0.181 269.5);

Tailwind

colors: {
  custom: {
    50: '#7973c9',
    500: '#2b3eb0',
    950: '#000000',
  },
}

SCSS

$custom: #2b3eb0;
$custom-light: #7973c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3eb0",
  "rgb": {
    "r": 43,
    "g": 62,
    "b": 176
  },
  "hsl": {
    "h": 231.429,
    "s": 60.731,
    "l": 42.941
  },
  "oklch": {
    "l": 0.42714,
    "c": 0.18122,
    "h": 269.5
  },
  "luminance": 0.07093
}

Semantic roles & 50–950 ramp

primary

#2B3EB0

secondary

#C6BA71

accent

#CD44E4

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2B3EB0

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

Preview Lab → · Contrast checker → · Palette generator →