#23479B#23479B

#23479B is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.3% C 0.144 H 263.8°. Best body text is #FFFFFF at 8.59:1 contrast (WCAG AA passes).

Color values

HEX	#23479B
RGB	rgb(35, 71, 155)
HSL	hsl(222, 63%, 37%)
HSV	hsv(222, 77%, 61%)
CMYK	cmyk(77.4%, 54.2%, 0%, 39.2%)
CIE-LAB	lab(32.32, 18.42, -49.56)
CIE-LCH	lch(32.32, 52.88, 290.39°)
OKLab	oklab(42.31% -0.0154 -0.1428)
OKLCH	oklch(42.31% 0.144 263.8)
XYZ	xyz(8.8607, 7.2294, 31.9324)
Luminance	0.0723 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23479B #9B7723

analogous

#23839B #23479B #3B239B

triadic

#23479B #9B2347 #479B23

tetradic

#23479B #9B2383 #9B7723 #239B3B

square

#23479B #9B2383 #9B7723 #239B3B

split-complementary

#23479B #9B3B23 #839B23

monochromatic

#0C1937 #183069 #23479B #2E5ECD #5E83DB

Accessibility & contrast

On white

8.59

#23479B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#23479B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23479B

8.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23479B	#FFFFFF	#000000	##FFFFFF
##23479B	1.00	8.59	2.45	8.59
#FFFFFF	8.59	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#06529E

Deuteranopia (green-blind)

#004799

Tritanopia (blue-blind)

#005B6A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #23479b;
/* rgb */ color: rgb(35, 71, 155);
/* oklch */ color: oklch(42.3% 0.144 263.8);

Tailwind

colors: {
  custom: {
    50: '#7079b9',
    500: '#23479b',
    950: '#000000',
  },
}

SCSS

$custom: #23479b;
$custom-light: #7079b9;
$custom-dark: #000000;

JSON

{
  "hex": "#23479b",
  "rgb": {
    "r": 35,
    "g": 71,
    "b": 155
  },
  "hsl": {
    "h": 222,
    "s": 63.158,
    "l": 37.255
  },
  "oklch": {
    "l": 0.42309,
    "c": 0.14361,
    "h": 263.8
  },
  "luminance": 0.0723
}

Semantic roles & 50–950 ramp

primary

#23479B

secondary

#BFA15A

accent

#B542E6

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #23479B

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

Preview Lab → · Contrast checker → · Palette generator →