#223DA1#223DA1

#223DA1 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.7% C 0.165 H 266.9°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#223DA1
RGB	rgb(34, 61, 161)
HSL	hsl(227, 65%, 38%)
HSV	hsv(227, 79%, 63%)
CMYK	cmyk(78.9%, 62.1%, 0%, 36.9%)
CIE-LAB	lab(30.03, 27.42, -56.92)
CIE-LCH	lch(30.03, 63.18, 295.72°)
OKLab	oklab(40.73% -0.0088 -0.1646)
OKLCH	oklch(40.73% 0.165 266.9)
XYZ	xyz(8.7592, 6.2498, 34.4560)
Luminance	0.0625 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223DA1 #A18622

analogous

#227CA1 #223DA1 #4622A1

triadic

#223DA1 #A1223D #3DA122

tetradic

#223DA1 #A1227C #A18622 #22A146

square

#223DA1 #A1227C #A18622 #22A146

split-complementary

#223DA1 #A14622 #7CA122

monochromatic

#0D173C #172A6E #223DA1 #2D51D3 #607BDD

Accessibility & contrast

On white

9.33

#223DA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#223DA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223DA1

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223DA1	#FFFFFF	#000000	##FFFFFF
##223DA1	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA4

Deuteranopia (green-blind)

#00419F

Tritanopia (blue-blind)

#005769

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #223da1;
/* rgb */ color: rgb(34, 61, 161);
/* oklch */ color: oklch(40.7% 0.165 266.9);

Tailwind

colors: {
  custom: {
    50: '#7272be',
    500: '#223da1',
    950: '#000000',
  },
}

SCSS

$custom: #223da1;
$custom-light: #7272be;
$custom-dark: #000000;

JSON

{
  "hex": "#223da1",
  "rgb": {
    "r": 34,
    "g": 61,
    "b": 161
  },
  "hsl": {
    "h": 227.244,
    "s": 65.128,
    "l": 38.235
  },
  "oklch": {
    "l": 0.40731,
    "c": 0.16482,
    "h": 266.9
  },
  "luminance": 0.06251
}

Semantic roles & 50–950 ramp

primary

#223DA1

secondary

#C2AD5D

accent

#C440E8

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #223DA1

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

Preview Lab → · Contrast checker → · Palette generator →