#1B1874#1B1874

#1B1874 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.3% C 0.149 H 273.5°. Best body text is #FFFFFF at 14.69:1 contrast (WCAG AA passes).

Color values

HEX	#1B1874
RGB	rgb(27, 24, 116)
HSL	hsl(242, 66%, 27%)
HSV	hsv(242, 79%, 45%)
CMYK	cmyk(76.7%, 79.3%, 0%, 54.5%)
CIE-LAB	lab(16.24, 33.93, -51.53)
CIE-LCH	lch(16.24, 61.70, 303.37°)
OKLab	oklab(29.25% 0.0092 -0.1491)
OKLCH	oklch(29.25% 0.149 273.5)
XYZ	xyz(3.9300, 2.1468, 16.7269)
Luminance	0.0215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1874 #717418

analogous

#184374 #1B1874 #491874

triadic

#1B1874 #741B18 #18741B

tetradic

#1B1874 #741843 #717418 #187449

square

#1B1874 #741843 #717418 #187449

split-complementary

#1B1874 #744918 #437418

monochromatic

#060519 #0F0E41 #1B1874 #2722A7 #3732D5

Accessibility & contrast

On white

14.69

#1B1874 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1B1874 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1874

14.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1874	#FFFFFF	#000000	##FFFFFF
##1B1874	1.00	14.69	1.43	14.69
#FFFFFF	14.69	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D77

Deuteranopia (green-blind)

#002472

Tritanopia (blue-blind)

#003345

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1b1874;
/* rgb */ color: rgb(27, 24, 116);
/* oklch */ color: oklch(29.3% 0.149 273.5);

Tailwind

colors: {
  custom: {
    50: '#68569d',
    500: '#1b1874',
    950: '#000000',
  },
}

SCSS

$custom: #1b1874;
$custom-light: #68569d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1874",
  "rgb": {
    "r": 27,
    "g": 24,
    "b": 116
  },
  "hsl": {
    "h": 241.957,
    "s": 65.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.29254,
    "c": 0.14936,
    "h": 273.5
  },
  "luminance": 0.02147
}

Semantic roles & 50–950 ramp

primary

#1B1874

secondary

#A6A93F

accent

#E93FE3

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1B1874

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

Preview Lab → · Contrast checker → · Palette generator →