#223F7C#223F7C

#223F7C is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.1% C 0.109 H 263.1°. Best body text is #FFFFFF at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#223F7C
RGB	rgb(34, 63, 124)
HSL	hsl(221, 57%, 31%)
HSV	hsv(221, 73%, 49%)
CMYK	cmyk(72.6%, 49.2%, 0%, 51.4%)
CIE-LAB	lab(27.71, 11.50, -37.91)
CIE-LCH	lch(27.71, 39.61, 286.88°)
OKLab	oklab(38.07% -0.0132 -0.1086)
OKLCH	oklch(38.07% 0.109 263.1)
XYZ	xyz(6.0740, 5.3497, 19.7774)
Luminance	0.0535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F7C #7C5F22

analogous

#226C7C #223F7C #32227C

triadic

#223F7C #7C223F #3F7C22

tetradic

#223F7C #7C226C #7C5F22 #227C32

square

#223F7C #7C226C #7C5F22 #227C32

split-complementary

#223F7C #7C3222 #6C7C22

monochromatic

#080E1C #15274C #223F7C #2F57AC #4B75CE

Accessibility & contrast

On white

10.14

#223F7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#223F7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F7C

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F7C	#FFFFFF	#000000	##FFFFFF
##223F7C	1.00	10.14	2.07	10.14
#FFFFFF	10.14	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F467E

Deuteranopia (green-blind)

#093E7B

Tritanopia (blue-blind)

#004D57

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #223f7c;
/* rgb */ color: rgb(34, 63, 124);
/* oklch */ color: oklch(38.1% 0.109 263.1);

Tailwind

colors: {
  custom: {
    50: '#6973a2',
    500: '#223f7c',
    950: '#000000',
  },
}

SCSS

$custom: #223f7c;
$custom-light: #6973a2;
$custom-dark: #000000;

JSON

{
  "hex": "#223f7c",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 124
  },
  "hsl": {
    "h": 220.667,
    "s": 56.962,
    "l": 30.98
  },
  "oklch": {
    "l": 0.38069,
    "c": 0.10945,
    "h": 263.1
  },
  "luminance": 0.0535
}

Semantic roles & 50–950 ramp

primary

#223F7C

secondary

#AF8F4B

accent

#AF48E0

background

#F6F6FA

surface

#ECECF3

border

#C7C7CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #223F7C

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

Preview Lab → · Contrast checker → · Palette generator →