#1D189E#1D189E

#1D189E is a dark, highly saturated blue. Relative luminance 0.034; OKLCH L 34.5% C 0.200 H 270.5°. Best body text is #FFFFFF at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#1D189E
RGB	rgb(29, 24, 158)
HSL	hsl(242, 74%, 36%)
HSV	hsv(242, 85%, 62%)
CMYK	cmyk(81.6%, 84.8%, 0%, 38%)
CIE-LAB	lab(21.51, 47.91, -69.15)
CIE-LCH	lch(21.51, 84.13, 304.72°)
OKLab	oklab(34.45% 0.0018 -0.2001)
OKLCH	oklch(34.45% 0.2 270.5)
XYZ	xyz(7.0028, 3.3823, 32.6249)
Luminance	0.0338 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D189E #999E18

analogous

#18569E #1D189E #60189E

triadic

#1D189E #9E1D18 #189E1D

tetradic

#1D189E #9E1856 #999E18 #189E60

square

#1D189E #9E1856 #999E18 #189E60

split-complementary

#1D189E #9E6018 #569E18

monochromatic

#090834 #131069 #1D189E #2720D3 #524DE4

Accessibility & contrast

On white

12.53

#1D189E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1D189E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D189E

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D189E	#FFFFFF	#000000	##FFFFFF
##1D189E	1.00	12.53	1.68	12.53
#FFFFFF	12.53	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003AA2

Deuteranopia (green-blind)

#002D9C

Tritanopia (blue-blind)

#00445D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d189e;
/* rgb */ color: rgb(29, 24, 158);
/* oklch */ color: oklch(34.5% 0.200 270.5);

Tailwind

colors: {
  custom: {
    50: '#745abc',
    500: '#1d189e',
    950: '#000000',
  },
}

SCSS

$custom: #1d189e;
$custom-light: #745abc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d189e",
  "rgb": {
    "r": 29,
    "g": 24,
    "b": 158
  },
  "hsl": {
    "h": 242.239,
    "s": 73.626,
    "l": 35.686
  },
  "oklch": {
    "l": 0.34452,
    "c": 0.20013,
    "h": 270.5
  },
  "luminance": 0.03383
}

Semantic roles & 50–950 ramp

primary

#1D189E

secondary

#C1C64C

accent

#F038E9

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1D189E

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

Preview Lab → · Contrast checker → · Palette generator →