#1823A1#1823A1

#1823A1 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.9% C 0.196 H 268.2°. Best body text is #FFFFFF at 11.71:1 contrast (WCAG AA passes).

Color values

HEX	#1823A1
RGB	rgb(24, 35, 161)
HSL	hsl(235, 74%, 36%)
HSV	hsv(235, 85%, 63%)
CMYK	cmyk(85.1%, 78.3%, 0%, 36.9%)
CIE-LAB	lab(23.57, 43.03, -67.58)
CIE-LCH	lch(23.57, 80.12, 302.49°)
OKLab	oklab(35.93% -0.0062 -0.1958)
OKLCH	oklch(35.93% 0.196 268.2)
XYZ	xyz(7.4085, 3.9686, 34.0868)
Luminance	0.0397 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1823A1 #A19618

analogous

#1868A1 #1823A1 #5218A1

triadic

#1823A1 #A11823 #23A118

tetradic

#1823A1 #A11868 #A19618 #18A152

square

#1823A1 #A11868 #A19618 #18A152

split-complementary

#1823A1 #A15218 #68A118

monochromatic

#080C36 #10176C #1823A1 #202FD6 #4F5BE5

Accessibility & contrast

On white

11.71

#1823A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1823A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1823A1

11.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1823A1	#FFFFFF	#000000	##FFFFFF
##1823A1	1.00	11.71	1.79	11.71
#FFFFFF	11.71	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FA5

Deuteranopia (green-blind)

#00319F

Tritanopia (blue-blind)

#004961

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1823a1;
/* rgb */ color: rgb(24, 35, 161);
/* oklch */ color: oklch(35.9% 0.196 268.2);

Tailwind

colors: {
  custom: {
    50: '#7260be',
    500: '#1823a1',
    950: '#000000',
  },
}

SCSS

$custom: #1823a1;
$custom-light: #7260be;
$custom-dark: #000000;

JSON

{
  "hex": "#1823a1",
  "rgb": {
    "r": 24,
    "g": 35,
    "b": 161
  },
  "hsl": {
    "h": 235.182,
    "s": 74.054,
    "l": 36.275
  },
  "oklch": {
    "l": 0.35926,
    "c": 0.19595,
    "h": 268.2
  },
  "luminance": 0.03969
}

Semantic roles & 50–950 ramp

primary

#1823A1

secondary

#C7BD4E

accent

#E237F1

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #1823A1

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

Preview Lab → · Contrast checker → · Palette generator →