#23479C#23479C

#23479C is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.4% C 0.145 H 263.9°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#23479C
RGB	rgb(35, 71, 156)
HSL	hsl(222, 63%, 37%)
HSV	hsv(222, 78%, 61%)
CMYK	cmyk(77.6%, 54.5%, 0%, 38.8%)
CIE-LAB	lab(32.40, 18.82, -50.05)
CIE-LCH	lch(32.40, 53.47, 290.61°)
OKLab	oklab(42.39% -0.0153 -0.1442)
OKLCH	oklch(42.39% 0.145 263.9)
XYZ	xyz(8.9450, 7.2631, 32.3765)
Luminance	0.0726 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23479C #9C7823

analogous

#23839C #23479C #3C239C

triadic

#23479C #9C2347 #479C23

tetradic

#23479C #9C2383 #9C7823 #239C3C

square

#23479C #9C2383 #9C7823 #239C3C

split-complementary

#23479C #9C3C23 #839C23

monochromatic

#0D1A38 #18306A #23479C #2E5ECE #5E83DB

Accessibility & contrast

On white

8.56

#23479C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#23479C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23479C

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23479C	#FFFFFF	#000000	##FFFFFF
##23479C	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03529F

Deuteranopia (green-blind)

#00479A

Tritanopia (blue-blind)

#005C6A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #23479c;
/* rgb */ color: rgb(35, 71, 156);
/* oklch */ color: oklch(42.4% 0.145 263.9);

Tailwind

colors: {
  custom: {
    50: '#7179ba',
    500: '#23479c',
    950: '#000000',
  },
}

SCSS

$custom: #23479c;
$custom-light: #7179ba;
$custom-dark: #000000;

JSON

{
  "hex": "#23479c",
  "rgb": {
    "r": 35,
    "g": 71,
    "b": 156
  },
  "hsl": {
    "h": 222.149,
    "s": 63.351,
    "l": 37.451
  },
  "oklch": {
    "l": 0.4239,
    "c": 0.14502,
    "h": 263.9
  },
  "luminance": 0.07264
}

Semantic roles & 50–950 ramp

primary

#23479C

secondary

#C0A25B

accent

#B541E6

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #23479C

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

Preview Lab → · Contrast checker → · Palette generator →