#1B1890#1B1890

#1B1890 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.6% C 0.184 H 270.9°. Best body text is #FFFFFF at 13.29:1 contrast (WCAG AA passes).

Color values

HEX	#1B1890
RGB	rgb(27, 24, 144)
HSL	hsl(242, 71%, 33%)
HSV	hsv(242, 83%, 56%)
CMYK	cmyk(81.3%, 83.3%, 0%, 43.5%)
CIE-LAB	lab(19.64, 43.37, -63.64)
CIE-LCH	lch(19.64, 77.01, 304.28°)
OKLab	oklab(32.62% 0.0027 -0.1842)
OKLCH	oklch(32.62% 0.184 270.9)
XYZ	xyz(5.8110, 2.8992, 26.6335)
Luminance	0.0290 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1890 #8D9018

analogous

#185190 #1B1890 #571890

triadic

#1B1890 #901B18 #18901B

tetradic

#1B1890 #901851 #8D9018 #189057

square

#1B1890 #901851 #8D9018 #189057

split-complementary

#1B1890 #905718 #519018

monochromatic

#070727 #110F5C #1B1890 #2521C4 #4743E0

Accessibility & contrast

On white

13.29

#1B1890 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1B1890 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1890

13.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1890	#FFFFFF	#000000	##FFFFFF
##1B1890	1.00	13.29	1.58	13.29
#FFFFFF	13.29	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003593

Deuteranopia (green-blind)

#00298E

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b1890;
/* rgb */ color: rgb(27, 24, 144);
/* oklch */ color: oklch(32.6% 0.184 270.9);

Tailwind

colors: {
  custom: {
    50: '#6f58b2',
    500: '#1b1890',
    950: '#000000',
  },
}

SCSS

$custom: #1b1890;
$custom-light: #6f58b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1890",
  "rgb": {
    "r": 27,
    "g": 24,
    "b": 144
  },
  "hsl": {
    "h": 241.5,
    "s": 71.429,
    "l": 32.941
  },
  "oklch": {
    "l": 0.32617,
    "c": 0.18423,
    "h": 270.9
  },
  "luminance": 0.029
}

Semantic roles & 50–950 ramp

primary

#1B1890

secondary

#BDC043

accent

#EE3AEA

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1B1890

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

Preview Lab → · Contrast checker → · Palette generator →