#223B8B#223B8B

#223B8B is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.4% C 0.137 H 266.7°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#223B8B
RGB	rgb(34, 59, 139)
HSL	hsl(226, 61%, 34%)
HSV	hsv(226, 76%, 55%)
CMYK	cmyk(75.5%, 57.6%, 0%, 45.5%)
CIE-LAB	lab(27.66, 20.22, -47.34)
CIE-LCH	lch(27.66, 51.47, 293.13°)
OKLab	oklab(38.39% -0.008 -0.1365)
OKLCH	oklch(38.39% 0.137 266.7)
XYZ	xyz(6.8822, 5.3314, 25.0874)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223B8B #8B7222

analogous

#22708B #223B8B #3E228B

triadic

#223B8B #8B223B #3B8B22

tetradic

#223B8B #8B2270 #8B7222 #228B3E

square

#223B8B #8B2270 #8B7222 #228B3E

split-complementary

#223B8B #8B3E22 #708B22

monochromatic

#0A1129 #16265A #223B8B #2E50BC #5372D5

Accessibility & contrast

On white

10.16

#223B8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#223B8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223B8B

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223B8B	#FFFFFF	#000000	##FFFFFF
##223B8B	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468E

Deuteranopia (green-blind)

#003D89

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #223b8b;
/* rgb */ color: rgb(34, 59, 139);
/* oklch */ color: oklch(38.4% 0.137 266.7);

Tailwind

colors: {
  custom: {
    50: '#6d70ae',
    500: '#223b8b',
    950: '#000000',
  },
}

SCSS

$custom: #223b8b;
$custom-light: #6d70ae;
$custom-dark: #000000;

JSON

{
  "hex": "#223b8b",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 139
  },
  "hsl": {
    "h": 225.714,
    "s": 60.694,
    "l": 33.922
  },
  "oklch": {
    "l": 0.38385,
    "c": 0.1367,
    "h": 266.7
  },
  "luminance": 0.05332
}

Semantic roles & 50–950 ramp

primary

#223B8B

secondary

#B8A050

accent

#BE44E4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #223B8B

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

Preview Lab → · Contrast checker → · Palette generator →