#23499D#23499D

#23499D is a dark, vivid blue. Relative luminance 0.076; OKLCH L 42.9% C 0.144 H 263.3°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#23499D
RGB	rgb(35, 73, 157)
HSL	hsl(221, 64%, 38%)
HSV	hsv(221, 78%, 62%)
CMYK	cmyk(77.7%, 53.5%, 0%, 38.4%)
CIE-LAB	lab(33.04, 17.85, -49.61)
CIE-LCH	lch(33.04, 52.73, 289.79°)
OKLab	oklab(42.9% -0.0168 -0.1429)
OKLCH	oklch(42.9% 0.144 263.3)
XYZ	xyz(9.1593, 7.5557, 32.8674)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23499D #9D7723

analogous

#23869D #23499D #3A239D

triadic

#23499D #9D2349 #499D23

tetradic

#23499D #9D2386 #9D7723 #239D3A

square

#23499D #9D2386 #9D7723 #239D3A

split-complementary

#23499D #9D3A23 #869D23

monochromatic

#0D1A39 #18326B #23499D #2E60CF #5F86DB

Accessibility & contrast

On white

8.36

#23499D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#23499D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23499D

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23499D	#FFFFFF	#000000	##FFFFFF
##23499D	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C54A0

Deuteranopia (green-blind)

#00489B

Tritanopia (blue-blind)

#005D6C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #23499d;
/* rgb */ color: rgb(35, 73, 157);
/* oklch */ color: oklch(42.9% 0.144 263.3);

Tailwind

colors: {
  custom: {
    50: '#717bbb',
    500: '#23499d',
    950: '#000000',
  },
}

SCSS

$custom: #23499d;
$custom-light: #717bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#23499d",
  "rgb": {
    "r": 35,
    "g": 73,
    "b": 157
  },
  "hsl": {
    "h": 221.311,
    "s": 63.542,
    "l": 37.647
  },
  "oklch": {
    "l": 0.429,
    "c": 0.14387,
    "h": 263.3
  },
  "luminance": 0.07557
}

Semantic roles & 50–950 ramp

primary

#23499D

secondary

#C0A15C

accent

#B341E7

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #23499D

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

Preview Lab → · Contrast checker → · Palette generator →