#2223BB#2223BB

#2223BB is a dark, highly saturated blue. Relative luminance 0.051; OKLCH L 39.4% C 0.224 H 269.7°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#2223BB
RGB	rgb(34, 35, 187)
HSL	hsl(240, 69%, 43%)
HSV	hsv(240, 82%, 73%)
CMYK	cmyk(81.8%, 81.3%, 0%, 26.7%)
CIE-LAB	lab(27.10, 52.05, -77.33)
CIE-LCH	lch(27.10, 93.21, 303.94°)
OKLab	oklab(39.41% -0.0013 -0.2239)
OKLCH	oklch(39.41% 0.224 269.7)
XYZ	xyz(10.2273, 5.1288, 47.4550)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2223BB #BBBA22

analogous

#226FBB #2223BB #6D22BB

triadic

#2223BB #BB2223 #23BB22

tetradic

#2223BB #BB226F #BBBA22 #22BB6D

square

#2223BB #BB226F #BBBA22 #22BB6D

split-complementary

#2223BB #BB6D22 #6FBB22

monochromatic

#0F1053 #191987 #2223BB #3E3FDC #7273E5

Accessibility & contrast

On white

10.37

#2223BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#2223BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2223BB

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2223BB	#FFFFFF	#000000	##FFFFFF
##2223BB	1.00	10.37	2.03	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048BF

Deuteranopia (green-blind)

#0038B8

Tritanopia (blue-blind)

#005470

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2223bb;
/* rgb */ color: rgb(34, 35, 187);
/* oklch */ color: oklch(39.4% 0.224 269.7);

Tailwind

colors: {
  custom: {
    50: '#7b62d1',
    500: '#2223bb',
    950: '#000000',
  },
}

SCSS

$custom: #2223bb;
$custom-light: #7b62d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2223bb",
  "rgb": {
    "r": 34,
    "g": 35,
    "b": 187
  },
  "hsl": {
    "h": 239.608,
    "s": 69.231,
    "l": 43.333
  },
  "oklch": {
    "l": 0.39413,
    "c": 0.22391,
    "h": 269.7
  },
  "luminance": 0.0513
}

Semantic roles & 50–950 ramp

primary

#2223BB

secondary

#CCCC6D

accent

#EB3CEC

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0514

muted

#7D7A83

Preview Lab

Preview with #2223BB

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

Preview Lab → · Contrast checker → · Palette generator →