#223B70#223B70

#223B70 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.2% C 0.097 H 263.4°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#223B70
RGB	rgb(34, 59, 112)
HSL	hsl(221, 53%, 29%)
HSV	hsv(221, 70%, 44%)
CMYK	cmyk(69.6%, 47.3%, 0%, 56.1%)
CIE-LAB	lab(25.68, 9.53, -33.58)
CIE-LCH	lch(25.68, 34.90, 285.85°)
OKLab	oklab(36.25% -0.0112 -0.096)
OKLCH	oklch(36.25% 0.097 263.4)
XYZ	xyz(5.1473, 4.6374, 15.9499)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223B70 #705722

analogous

#226270 #223B70 #302270

triadic

#223B70 #70223B #3B7022

tetradic

#223B70 #702262 #705722 #227030

square

#223B70 #702262 #705722 #227030

split-complementary

#223B70 #703022 #627022

monochromatic

#070C17 #142241 #223B70 #30549F #466FC7

Accessibility & contrast

On white

10.89

#223B70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#223B70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223B70

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223B70	#FFFFFF	#000000	##FFFFFF
##223B70	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#214172

Deuteranopia (green-blind)

#13396F

Tritanopia (blue-blind)

#004750

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #223b70;
/* rgb */ color: rgb(34, 59, 112);
/* oklch */ color: oklch(36.2% 0.097 263.4);

Tailwind

colors: {
  custom: {
    50: '#677099',
    500: '#223b70',
    950: '#000000',
  },
}

SCSS

$custom: #223b70;
$custom-light: #677099;
$custom-dark: #000000;

JSON

{
  "hex": "#223b70",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 112
  },
  "hsl": {
    "h": 220.769,
    "s": 53.425,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36247,
    "c": 0.09663,
    "h": 263.4
  },
  "luminance": 0.04638
}

Semantic roles & 50–950 ramp

primary

#223B70

secondary

#A3874A

accent

#AE4BDD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #223B70

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

Preview Lab → · Contrast checker → · Palette generator →