#23499C#23499C

#23499C is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.8% C 0.142 H 263.2°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#23499C
RGB	rgb(35, 73, 156)
HSL	hsl(221, 63%, 37%)
HSV	hsv(221, 78%, 61%)
CMYK	cmyk(77.6%, 53.2%, 0%, 38.8%)
CIE-LAB	lab(32.97, 17.46, -49.13)
CIE-LCH	lch(32.97, 52.14, 289.57°)
OKLab	oklab(42.82% -0.0169 -0.1415)
OKLCH	oklch(42.82% 0.142 263.2)
XYZ	xyz(9.0743, 7.5217, 32.4196)
Luminance	0.0752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23499C #9C7623

analogous

#23869C #23499C #39239C

triadic

#23499C #9C2349 #499C23

tetradic

#23499C #9C2386 #9C7623 #239C39

square

#23499C #9C2386 #9C7623 #239C39

split-complementary

#23499C #9C3923 #869C23

monochromatic

#0D1A38 #18326A #23499C #2E60CE #5E86DB

Accessibility & contrast

On white

8.38

#23499C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#23499C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23499C

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23499C	#FFFFFF	#000000	##FFFFFF
##23499C	1.00	8.38	2.50	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E539F

Deuteranopia (green-blind)

#00489A

Tritanopia (blue-blind)

#005D6B

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #23499c;
/* rgb */ color: rgb(35, 73, 156);
/* oklch */ color: oklch(42.8% 0.142 263.2);

Tailwind

colors: {
  custom: {
    50: '#717bba',
    500: '#23499c',
    950: '#000000',
  },
}

SCSS

$custom: #23499c;
$custom-light: #717bba;
$custom-dark: #000000;

JSON

{
  "hex": "#23499c",
  "rgb": {
    "r": 35,
    "g": 73,
    "b": 156
  },
  "hsl": {
    "h": 221.157,
    "s": 63.351,
    "l": 37.451
  },
  "oklch": {
    "l": 0.42821,
    "c": 0.14247,
    "h": 263.2
  },
  "luminance": 0.07523
}

Semantic roles & 50–950 ramp

primary

#23499C

secondary

#C0A05B

accent

#B341E6

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #23499C

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

Preview Lab → · Contrast checker → · Palette generator →