#223D7B#223D7B

#223D7B is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.5% C 0.111 H 264.1°. Best body text is #FFFFFF at 10.39:1 contrast (WCAG AA passes).

Color values

HEX	#223D7B
RGB	rgb(34, 61, 123)
HSL	hsl(222, 57%, 31%)
HSV	hsv(222, 72%, 48%)
CMYK	cmyk(72.4%, 50.4%, 0%, 51.8%)
CIE-LAB	lab(27.04, 12.49, -38.36)
CIE-LCH	lch(27.04, 40.34, 288.04°)
OKLab	oklab(37.53% -0.0114 -0.11)
OKLCH	oklch(37.53% 0.111 264.1)
XYZ	xyz(5.9023, 5.1070, 19.4097)
Luminance	0.0511 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223D7B #7B6022

analogous

#22697B #223D7B #33227B

triadic

#223D7B #7B223D #3D7B22

tetradic

#223D7B #7B2269 #7B6022 #227B33

square

#223D7B #7B2269 #7B6022 #227B33

split-complementary

#223D7B #7B3322 #697B22

monochromatic

#070D1B #15254B #223D7B #2F55AB #4A72CD

Accessibility & contrast

On white

10.39

#223D7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#223D7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223D7B

10.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223D7B	#FFFFFF	#000000	##FFFFFF
##223D7B	1.00	10.39	2.02	10.39
#FFFFFF	10.39	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B447D

Deuteranopia (green-blind)

#033C7A

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #223d7b;
/* rgb */ color: rgb(34, 61, 123);
/* oklch */ color: oklch(37.5% 0.111 264.1);

Tailwind

colors: {
  custom: {
    50: '#6972a2',
    500: '#223d7b',
    950: '#000000',
  },
}

SCSS

$custom: #223d7b;
$custom-light: #6972a2;
$custom-dark: #000000;

JSON

{
  "hex": "#223d7b",
  "rgb": {
    "r": 34,
    "g": 61,
    "b": 123
  },
  "hsl": {
    "h": 221.798,
    "s": 56.688,
    "l": 30.784
  },
  "oklch": {
    "l": 0.37533,
    "c": 0.1106,
    "h": 264.1
  },
  "luminance": 0.05108
}

Semantic roles & 50–950 ramp

primary

#223D7B

secondary

#AE904B

accent

#B248E0

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #223D7B

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

Preview Lab → · Contrast checker → · Palette generator →