#223F7D#223F7D

#223F7D is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.1% C 0.111 H 263.3°. Best body text is #FFFFFF at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#223F7D
RGB	rgb(34, 63, 125)
HSL	hsl(221, 57%, 31%)
HSV	hsv(221, 73%, 49%)
CMYK	cmyk(72.8%, 49.6%, 0%, 51%)
CIE-LAB	lab(27.78, 11.90, -38.42)
CIE-LCH	lch(27.78, 40.22, 287.21°)
OKLab	oklab(38.14% -0.013 -0.1102)
OKLCH	oklch(38.14% 0.111 263.3)
XYZ	xyz(6.1376, 5.3751, 20.1121)
Luminance	0.0538 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F7D #7D6022

analogous

#226C7D #223F7D #32227D

triadic

#223F7D #7D223F #3F7D22

tetradic

#223F7D #7D226C #7D6022 #227D32

square

#223F7D #7D226C #7D6022 #227D32

split-complementary

#223F7D #7D3222 #6C7D22

monochromatic

#080F1D #15274D #223F7D #2F57AD #4B75CE

Accessibility & contrast

On white

10.12

#223F7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#223F7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F7D

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F7D	#FFFFFF	#000000	##FFFFFF
##223F7D	1.00	10.12	2.08	10.12
#FFFFFF	10.12	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E467F

Deuteranopia (green-blind)

#063E7C

Tritanopia (blue-blind)

#004E58

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #223f7d;
/* rgb */ color: rgb(34, 63, 125);
/* oklch */ color: oklch(38.1% 0.111 263.3);

Tailwind

colors: {
  custom: {
    50: '#6973a3',
    500: '#223f7d',
    950: '#000000',
  },
}

SCSS

$custom: #223f7d;
$custom-light: #6973a3;
$custom-dark: #000000;

JSON

{
  "hex": "#223f7d",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 125
  },
  "hsl": {
    "h": 220.879,
    "s": 57.233,
    "l": 31.176
  },
  "oklch": {
    "l": 0.38144,
    "c": 0.11094,
    "h": 263.3
  },
  "luminance": 0.05376
}

Semantic roles & 50–950 ramp

primary

#223F7D

secondary

#B0904B

accent

#B047E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #223F7D

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

Preview Lab → · Contrast checker → · Palette generator →