#23288F#23288F

#23288F is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.2% C 0.165 H 272.1°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#23288F
RGB	rgb(35, 40, 143)
HSL	hsl(237, 61%, 35%)
HSV	hsv(237, 76%, 56%)
CMYK	cmyk(75.5%, 72%, 0%, 43.9%)
CIE-LAB	lab(23.19, 34.56, -57.12)
CIE-LCH	lch(23.19, 66.76, 301.18°)
OKLab	oklab(35.22% 0.0059 -0.1653)
OKLCH	oklch(35.22% 0.165 272.1)
XYZ	xyz(6.4082, 3.8574, 26.3881)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23288F #8F8A23

analogous

#235E8F #23288F #54238F

triadic

#23288F #8F2328 #288F23

tetradic

#23288F #8F235E #8F8A23 #238F54

square

#23288F #8F235E #8F8A23 #238F54

split-complementary

#23288F #8F5423 #5E8F23

monochromatic

#0B0C2D #171A5E #23288F #2F36C0 #575DD6

Accessibility & contrast

On white

11.85

#23288F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#23288F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23288F

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23288F	#FFFFFF	#000000	##FFFFFF
##23288F	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C92

Deuteranopia (green-blind)

#00328D

Tritanopia (blue-blind)

#004558

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #23288f;
/* rgb */ color: rgb(35, 40, 143);
/* oklch */ color: oklch(35.2% 0.165 272.1);

Tailwind

colors: {
  custom: {
    50: '#7062b1',
    500: '#23288f',
    950: '#000000',
  },
}

SCSS

$custom: #23288f;
$custom-light: #7062b1;
$custom-dark: #000000;

JSON

{
  "hex": "#23288f",
  "rgb": {
    "r": 35,
    "g": 40,
    "b": 143
  },
  "hsl": {
    "h": 237.222,
    "s": 60.674,
    "l": 34.902
  },
  "oklch": {
    "l": 0.35224,
    "c": 0.16537,
    "h": 272.1
  },
  "luminance": 0.03858
}

Semantic roles & 50–950 ramp

primary

#23288F

secondary

#BAB554

accent

#DC44E4

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #23288F

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

Preview Lab → · Contrast checker → · Palette generator →