#223A8F#223A8F

#223A8F is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.144 H 267.2°. Best body text is #FFFFFF at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#223A8F
RGB	rgb(34, 58, 143)
HSL	hsl(227, 62%, 35%)
HSV	hsv(227, 76%, 56%)
CMYK	cmyk(76.2%, 59.4%, 0%, 43.9%)
CIE-LAB	lab(27.71, 22.48, -49.73)
CIE-LCH	lch(27.71, 54.57, 294.32°)
OKLab	oklab(38.52% -0.007 -0.1435)
OKLCH	oklch(38.52% 0.144 267.2)
XYZ	xyz(7.1289, 5.3486, 26.6379)
Luminance	0.0535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223A8F #8F7722

analogous

#22718F #223A8F #41228F

triadic

#223A8F #8F223A #3A8F22

tetradic

#223A8F #8F2271 #8F7722 #228F41

square

#223A8F #8F2271 #8F7722 #228F41

split-complementary

#223A8F #8F4122 #718F22

monochromatic

#0A122C #16265E #223A8F #2E4EC0 #5571D7

Accessibility & contrast

On white

10.15

#223A8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#223A8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223A8F

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223A8F	#FFFFFF	#000000	##FFFFFF
##223A8F	1.00	10.15	2.07	10.15
#FFFFFF	10.15	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004792

Deuteranopia (green-blind)

#003D8D

Tritanopia (blue-blind)

#004F5E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #223a8f;
/* rgb */ color: rgb(34, 58, 143);
/* oklch */ color: oklch(38.5% 0.144 267.2);

Tailwind

colors: {
  custom: {
    50: '#6e6fb1',
    500: '#223a8f',
    950: '#000000',
  },
}

SCSS

$custom: #223a8f;
$custom-light: #6e6fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#223a8f",
  "rgb": {
    "r": 34,
    "g": 58,
    "b": 143
  },
  "hsl": {
    "h": 226.789,
    "s": 61.582,
    "l": 34.706
  },
  "oklch": {
    "l": 0.38522,
    "c": 0.14369,
    "h": 267.2
  },
  "luminance": 0.05349
}

Semantic roles & 50–950 ramp

primary

#223A8F

secondary

#BAA352

accent

#C143E5

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #223A8F

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

Preview Lab → · Contrast checker → · Palette generator →