#23299B#23299B

#23299B is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.7% C 0.180 H 271.2°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#23299B
RGB	rgb(35, 41, 155)
HSL	hsl(237, 63%, 37%)
HSV	hsv(237, 77%, 61%)
CMYK	cmyk(77.4%, 73.5%, 0%, 39.2%)
CIE-LAB	lab(24.67, 38.21, -62.08)
CIE-LCH	lch(24.67, 72.90, 301.61°)
OKLab	oklab(36.66% 0.0037 -0.1797)
OKLCH	oklch(36.66% 0.18 271.2)
XYZ	xyz(7.4005, 4.3090, 31.4457)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23299B #9B9523

analogous

#23659B #23299B #59239B

triadic

#23299B #9B2329 #299B23

tetradic

#23299B #9B2365 #9B9523 #239B59

square

#23299B #9B2365 #9B9523 #239B59

split-complementary

#23299B #9B5923 #659B23

monochromatic

#0C0F37 #181C69 #23299B #2E36CD #5E64DB

Accessibility & contrast

On white

11.28

#23299B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#23299B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23299B

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23299B	#FFFFFF	#000000	##FFFFFF
##23299B	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00409E

Deuteranopia (green-blind)

#003599

Tritanopia (blue-blind)

#004A5F

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #23299b;
/* rgb */ color: rgb(35, 41, 155);
/* oklch */ color: oklch(36.7% 0.180 271.2);

Tailwind

colors: {
  custom: {
    50: '#7364ba',
    500: '#23299b',
    950: '#000000',
  },
}

SCSS

$custom: #23299b;
$custom-light: #7364ba;
$custom-dark: #000000;

JSON

{
  "hex": "#23299b",
  "rgb": {
    "r": 35,
    "g": 41,
    "b": 155
  },
  "hsl": {
    "h": 237,
    "s": 63.158,
    "l": 37.255
  },
  "oklch": {
    "l": 0.36655,
    "c": 0.17977,
    "h": 271.2
  },
  "luminance": 0.0431
}

Semantic roles & 50–950 ramp

primary

#23299B

secondary

#BFBA5A

accent

#DE42E6

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090512

muted

#7B7A81

Preview Lab

Preview with #23299B

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

Preview Lab → · Contrast checker → · Palette generator →