#23128A#23128A

#23128A is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.7% C 0.179 H 275.3°. Best body text is #FFFFFF at 13.77:1 contrast (WCAG AA passes).

Color values

HEX	#23128A
RGB	rgb(35, 18, 138)
HSL	hsl(249, 77%, 31%)
HSV	hsv(249, 87%, 54%)
CMYK	cmyk(74.6%, 87%, 0%, 45.9%)
CIE-LAB	lab(18.47, 44.75, -61.81)
CIE-LCH	lch(18.47, 76.31, 305.91°)
OKLab	oklab(31.74% 0.0166 -0.1786)
OKLCH	oklch(31.74% 0.179 275.3)
XYZ	xyz(5.4954, 2.6244, 24.2568)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23128A #798A12

analogous

#123D8A #23128A #5F128A

triadic

#23128A #8A2312 #128A23

tetradic

#23128A #8A123D #798A12 #128A5F

square

#23128A #8A123D #798A12 #128A5F

split-complementary

#23128A #8A5F12 #3D8A12

monochromatic

#08041E #150B54 #23128A #3119C0 #4B32E4

Accessibility & contrast

On white

13.77

#23128A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#23128A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23128A

13.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23128A	#FFFFFF	#000000	##FFFFFF
##23128A	1.00	13.77	1.53	13.77
#FFFFFF	13.77	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328D

Deuteranopia (green-blind)

#002888

Tritanopia (blue-blind)

#003A51

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #23128a;
/* rgb */ color: rgb(35, 18, 138);
/* oklch */ color: oklch(31.7% 0.179 275.3);

Tailwind

colors: {
  custom: {
    50: '#7156ad',
    500: '#23128a',
    950: '#000000',
  },
}

SCSS

$custom: #23128a;
$custom-light: #7156ad;
$custom-dark: #000000;

JSON

{
  "hex": "#23128a",
  "rgb": {
    "r": 35,
    "g": 18,
    "b": 138
  },
  "hsl": {
    "h": 248.5,
    "s": 76.923,
    "l": 30.588
  },
  "oklch": {
    "l": 0.31737,
    "c": 0.1794,
    "h": 275.3
  },
  "luminance": 0.02625
}

Semantic roles & 50–950 ramp

primary

#23128A

secondary

#ACBF39

accent

#F334D8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #23128A

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

Preview Lab → · Contrast checker → · Palette generator →