#223D8B#223D8B

#223D8B is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.8% C 0.134 H 265.9°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#223D8B
RGB	rgb(34, 61, 139)
HSL	hsl(225, 61%, 34%)
HSV	hsv(225, 76%, 55%)
CMYK	cmyk(75.5%, 56.1%, 0%, 45.5%)
CIE-LAB	lab(28.22, 18.84, -46.42)
CIE-LCH	lch(28.22, 50.10, 292.09°)
OKLab	oklab(38.81% -0.0096 -0.1337)
OKLCH	oklch(38.81% 0.134 265.9)
XYZ	xyz(6.9870, 5.5409, 25.1224)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223D8B #8B7022

analogous

#22728B #223D8B #3B228B

triadic

#223D8B #8B223D #3D8B22

tetradic

#223D8B #8B2272 #8B7022 #228B3B

square

#223D8B #8B2272 #8B7022 #228B3B

split-complementary

#223D8B #8B3B22 #728B22

monochromatic

#0A1229 #16275A #223D8B #2E53BC #5374D5

Accessibility & contrast

On white

9.96

#223D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#223D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223D8B

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223D8B	#FFFFFF	#000000	##FFFFFF
##223D8B	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00488E

Deuteranopia (green-blind)

#003E89

Tritanopia (blue-blind)

#00505E

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #223d8b;
/* rgb */ color: rgb(34, 61, 139);
/* oklch */ color: oklch(38.8% 0.134 265.9);

Tailwind

colors: {
  custom: {
    50: '#6d72ad',
    500: '#223d8b',
    950: '#000000',
  },
}

SCSS

$custom: #223d8b;
$custom-light: #6d72ad;
$custom-dark: #000000;

JSON

{
  "hex": "#223d8b",
  "rgb": {
    "r": 34,
    "g": 61,
    "b": 139
  },
  "hsl": {
    "h": 224.571,
    "s": 60.694,
    "l": 33.922
  },
  "oklch": {
    "l": 0.3881,
    "c": 0.13408,
    "h": 265.9
  },
  "luminance": 0.05542
}

Semantic roles & 50–950 ramp

primary

#223D8B

secondary

#B89E50

accent

#BB44E4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #223D8B

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

Preview Lab → · Contrast checker → · Palette generator →