#223DB1#223DB1

#223DB1 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.2% C 0.186 H 267.2°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#223DB1
RGB	rgb(34, 61, 177)
HSL	hsl(229, 68%, 41%)
HSV	hsv(229, 81%, 69%)
CMYK	cmyk(80.8%, 65.5%, 0%, 30.6%)
CIE-LAB	lab(31.46, 33.49, -64.18)
CIE-LCH	lch(31.46, 72.39, 297.56°)
OKLab	oklab(42.23% -0.0092 -0.1858)
OKLCH	oklch(42.23% 0.186 267.2)
XYZ	xyz(10.2615, 6.8507, 42.3679)
Luminance	0.0685 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223DB1 #B19622

analogous

#2285B1 #223DB1 #4E22B1

triadic

#223DB1 #B1223D #3DB122

tetradic

#223DB1 #B12285 #B19622 #22B14E

square

#223DB1 #B12285 #B19622 #22B14E

split-complementary

#223DB1 #B14E22 #85B122

monochromatic

#0E1A4A #182B7E #223DB1 #3856D9 #6B81E3

Accessibility & contrast

On white

8.86

#223DB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#223DB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223DB1

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223DB1	#FFFFFF	#000000	##FFFFFF
##223DB1	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B5

Deuteranopia (green-blind)

#0043AF

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #223db1;
/* rgb */ color: rgb(34, 61, 177);
/* oklch */ color: oklch(42.2% 0.186 267.2);

Tailwind

colors: {
  custom: {
    50: '#7672c9',
    500: '#223db1',
    950: '#000000',
  },
}

SCSS

$custom: #223db1;
$custom-light: #7672c9;
$custom-dark: #000000;

JSON

{
  "hex": "#223db1",
  "rgb": {
    "r": 34,
    "g": 61,
    "b": 177
  },
  "hsl": {
    "h": 228.671,
    "s": 67.773,
    "l": 41.373
  },
  "oklch": {
    "l": 0.42227,
    "c": 0.18605,
    "h": 267.2
  },
  "luminance": 0.06852
}

Semantic roles & 50–950 ramp

primary

#223DB1

secondary

#C9B666

accent

#CA3DEB

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #223DB1

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

Preview Lab → · Contrast checker → · Palette generator →