#23188E#23188E

#23188E is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.9% C 0.180 H 274.3°. Best body text is #FFFFFF at 13.18:1 contrast (WCAG AA passes).

Color values

HEX	#23188E
RGB	rgb(35, 24, 142)
HSL	hsl(246, 71%, 33%)
HSV	hsv(246, 83%, 56%)
CMYK	cmyk(75.4%, 83.1%, 0%, 44.3%)
CIE-LAB	lab(19.90, 43.26, -61.95)
CIE-LCH	lch(19.90, 75.56, 304.93°)
OKLab	oklab(32.86% 0.0134 -0.1791)
OKLCH	oklch(32.86% 0.18 274.3)
XYZ	xyz(5.9006, 2.9630, 25.8469)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23188E #838E18

analogous

#18488E #23188E #5E188E

triadic

#23188E #8E2318 #188E23

tetradic

#23188E #8E1848 #838E18 #188E5E

square

#23188E #8E1848 #838E18 #188E5E

split-complementary

#23188E #8E5E18 #488E18

monochromatic

#090625 #160F5A #23188E #3021C2 #5041DF

Accessibility & contrast

On white

13.18

#23188E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#23188E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23188E

13.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23188E	#FFFFFF	#000000	##FFFFFF
##23188E	1.00	13.18	1.59	13.18
#FFFFFF	13.18	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003591

Deuteranopia (green-blind)

#002B8C

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #23188e;
/* rgb */ color: rgb(35, 24, 142);
/* oklch */ color: oklch(32.9% 0.180 274.3);

Tailwind

colors: {
  custom: {
    50: '#7159b0',
    500: '#23188e',
    950: '#000000',
  },
}

SCSS

$custom: #23188e;
$custom-light: #7159b0;
$custom-dark: #000000;

JSON

{
  "hex": "#23188e",
  "rgb": {
    "r": 35,
    "g": 24,
    "b": 142
  },
  "hsl": {
    "h": 245.593,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.32861,
    "c": 0.17965,
    "h": 274.3
  },
  "luminance": 0.02964
}

Semantic roles & 50–950 ramp

primary

#23188E

secondary

#B4C042

accent

#EE3ADD

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #23188E

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

Preview Lab → · Contrast checker → · Palette generator →