#223E7B#223E7B

#223E7B is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.8% C 0.109 H 263.5°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#223E7B
RGB	rgb(34, 62, 123)
HSL	hsl(221, 57%, 31%)
HSV	hsv(221, 72%, 48%)
CMYK	cmyk(72.4%, 49.6%, 0%, 51.8%)
CIE-LAB	lab(27.34, 11.80, -37.87)
CIE-LCH	lch(27.34, 39.67, 287.30°)
OKLab	oklab(37.76% -0.0123 -0.1086)
OKLCH	oklch(37.76% 0.109 263.5)
XYZ	xyz(5.9562, 5.2148, 19.4277)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223E7B #7B5F22

analogous

#226A7B #223E7B #33227B

triadic

#223E7B #7B223E #3E7B22

tetradic

#223E7B #7B226A #7B5F22 #227B33

square

#223E7B #7B226A #7B5F22 #227B33

split-complementary

#223E7B #7B3322 #6A7B22

monochromatic

#070E1B #15264B #223E7B #2F56AB #4A73CD

Accessibility & contrast

On white

10.28

#223E7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#223E7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223E7B

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223E7B	#FFFFFF	#000000	##FFFFFF
##223E7B	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D457D

Deuteranopia (green-blind)

#073D7A

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #223e7b;
/* rgb */ color: rgb(34, 62, 123);
/* oklch */ color: oklch(37.8% 0.109 263.5);

Tailwind

colors: {
  custom: {
    50: '#6972a2',
    500: '#223e7b',
    950: '#000000',
  },
}

SCSS

$custom: #223e7b;
$custom-light: #6972a2;
$custom-dark: #000000;

JSON

{
  "hex": "#223e7b",
  "rgb": {
    "r": 34,
    "g": 62,
    "b": 123
  },
  "hsl": {
    "h": 221.124,
    "s": 56.688,
    "l": 30.784
  },
  "oklch": {
    "l": 0.37763,
    "c": 0.10927,
    "h": 263.5
  },
  "luminance": 0.05215
}

Semantic roles & 50–950 ramp

primary

#223E7B

secondary

#AE8F4B

accent

#B048E0

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #223E7B

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

Preview Lab → · Contrast checker → · Palette generator →