#223B63#223B63

#223B63 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.3% C 0.077 H 259.4°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#223B63
RGB	rgb(34, 59, 99)
HSL	hsl(217, 49%, 26%)
HSV	hsv(217, 66%, 39%)
CMYK	cmyk(65.7%, 40.4%, 0%, 61.2%)
CIE-LAB	lab(24.85, 4.45, -26.53)
CIE-LCH	lch(24.85, 26.90, 279.52°)
OKLab	oklab(35.35% -0.0141 -0.0753)
OKLCH	oklch(35.35% 0.077 259.4)
XYZ	xyz(4.4750, 4.3685, 12.4093)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223B63 #634A22

analogous

#225B63 #223B63 #292263

triadic

#223B63 #63223B #3B6322

tetradic

#223B63 #63225B #634A22 #226329

square

#223B63 #63225B #634A22 #226329

split-complementary

#223B63 #632922 #5B6322

monochromatic

#080E17 #122035 #223B63 #325691 #4171BE

Accessibility & contrast

On white

11.21

#223B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#223B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223B63

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223B63	#FFFFFF	#000000	##FFFFFF
##223B63	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3E65

Deuteranopia (green-blind)

#213862

Tritanopia (blue-blind)

#00444A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #223b63;
/* rgb */ color: rgb(34, 59, 99);
/* oklch */ color: oklch(35.3% 0.077 259.4);

Tailwind

colors: {
  custom: {
    50: '#64708f',
    500: '#223b63',
    950: '#000000',
  },
}

SCSS

$custom: #223b63;
$custom-light: #64708f;
$custom-dark: #000000;

JSON

{
  "hex": "#223b63",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 99
  },
  "hsl": {
    "h": 216.923,
    "s": 48.872,
    "l": 26.078
  },
  "oklch": {
    "l": 0.35346,
    "c": 0.07662,
    "h": 259.4
  },
  "luminance": 0.04369
}

Semantic roles & 50–950 ramp

primary

#223B63

secondary

#97794A

accent

#A44FD8

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #223B63

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

Preview Lab → · Contrast checker → · Palette generator →