#223FBD#223FBD

#223FBD is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.7% C 0.199 H 266.9°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#223FBD
RGB	rgb(34, 63, 189)
HSL	hsl(229, 70%, 44%)
HSV	hsv(229, 82%, 74%)
CMYK	cmyk(82%, 66.7%, 0%, 25.9%)
CIE-LAB	lab(33.07, 36.66, -68.65)
CIE-LCH	lch(33.07, 77.83, 298.10°)
OKLab	oklab(43.74% -0.0107 -0.1989)
OKLCH	oklch(43.74% 0.199 266.9)
XYZ	xyz(11.6193, 7.5678, 48.9826)
Luminance	0.0757 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.02

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223FBD #BDA022

analogous

#228CBD #223FBD #5222BD

triadic

#223FBD #BD223F #3FBD22

tetradic

#223FBD #BD228C #BDA022 #22BD52

square

#223FBD #BD228C #BDA022 #22BD52

split-complementary

#223FBD #BD5222 #8CBD22

monochromatic

#0F1C55 #192E89 #223FBD #405DDD #7389E6

Accessibility & contrast

On white

8.35

#223FBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#223FBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223FBD

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223FBD	#FFFFFF	#000000	##FFFFFF
##223FBD	1.00	8.35	2.51	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C1

Deuteranopia (green-blind)

#0046BB

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #223fbd;
/* rgb */ color: rgb(34, 63, 189);
/* oklch */ color: oklch(43.7% 0.199 266.9);

Tailwind

colors: {
  custom: {
    50: '#7974d2',
    500: '#223fbd',
    950: '#000000',
  },
}

SCSS

$custom: #223fbd;
$custom-light: #7974d2;
$custom-dark: #000000;

JSON

{
  "hex": "#223fbd",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 189
  },
  "hsl": {
    "h": 228.774,
    "s": 69.507,
    "l": 43.725
  },
  "oklch": {
    "l": 0.43741,
    "c": 0.19916,
    "h": 266.9
  },
  "luminance": 0.07569
}

Semantic roles & 50–950 ramp

primary

#223FBD

secondary

#CDBB6E

accent

#CB3BEC

background

#F8F7FD

surface

#EFEDFA

border

#CAC8D3

text

#0B0814

muted

#7C7B83

Preview Lab

Preview with #223FBD

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

Preview Lab → · Contrast checker → · Palette generator →