#223DB3#223DB3

#223DB3 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.4% C 0.189 H 267.2°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#223DB3
RGB	rgb(34, 61, 179)
HSL	hsl(229, 68%, 42%)
HSV	hsv(229, 81%, 70%)
CMYK	cmyk(81%, 65.9%, 0%, 29.8%)
CIE-LAB	lab(31.65, 34.24, -65.06)
CIE-LCH	lch(31.65, 73.52, 297.76°)
OKLab	oklab(42.42% -0.0092 -0.1884)
OKLCH	oklch(42.42% 0.189 267.2)
XYZ	xyz(10.4623, 6.9310, 43.4255)
Luminance	0.0693 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223DB3 #B39822

analogous

#2285B3 #223DB3 #5022B3

triadic

#223DB3 #B3223D #3DB322

tetradic

#223DB3 #B32285 #B39822 #22B350

square

#223DB3 #B32285 #B39822 #22B350

split-complementary

#223DB3 #B35022 #85B322

monochromatic

#0E1A4C #182B80 #223DB3 #3957D9 #6C82E3

Accessibility & contrast

On white

8.80

#223DB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#223DB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223DB3

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223DB3	#FFFFFF	#000000	##FFFFFF
##223DB3	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B7

Deuteranopia (green-blind)

#0044B1

Tritanopia (blue-blind)

#005D72

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #223db3;
/* rgb */ color: rgb(34, 61, 179);
/* oklch */ color: oklch(42.4% 0.189 267.2);

Tailwind

colors: {
  custom: {
    50: '#7772cb',
    500: '#223db3',
    950: '#000000',
  },
}

SCSS

$custom: #223db3;
$custom-light: #7772cb;
$custom-dark: #000000;

JSON

{
  "hex": "#223db3",
  "rgb": {
    "r": 34,
    "g": 61,
    "b": 179
  },
  "hsl": {
    "h": 228.828,
    "s": 68.075,
    "l": 41.765
  },
  "oklch": {
    "l": 0.42419,
    "c": 0.18864,
    "h": 267.2
  },
  "luminance": 0.06932
}

Semantic roles & 50–950 ramp

primary

#223DB3

secondary

#C9B768

accent

#CB3DEB

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #223DB3

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

Preview Lab → · Contrast checker → · Palette generator →