#1B1678#1B1678

#1B1678 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.4% C 0.156 H 273.3°. Best body text is #FFFFFF at 14.66:1 contrast (WCAG AA passes).

Color values

HEX	#1B1678
RGB	rgb(27, 22, 120)
HSL	hsl(243, 69%, 28%)
HSV	hsv(243, 82%, 47%)
CMYK	cmyk(77.5%, 81.7%, 0%, 52.9%)
CIE-LAB	lab(16.32, 36.45, -53.98)
CIE-LCH	lch(16.32, 65.13, 304.03°)
OKLab	oklab(29.45% 0.0091 -0.1562)
OKLCH	oklch(29.45% 0.156 273.3)
XYZ	xyz(4.1279, 2.1625, 17.9655)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1678 #737816

analogous

#164278 #1B1678 #4C1678

triadic

#1B1678 #781B16 #16781B

tetradic

#1B1678 #781642 #737816 #16784C

square

#1B1678 #781642 #737816 #16784C

split-complementary

#1B1678 #784C16 #427816

monochromatic

#06051A #0F0D44 #1B1678 #271FAC #382FD9

Accessibility & contrast

On white

14.66

#1B1678 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1B1678 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1678

14.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1678	#FFFFFF	#000000	##FFFFFF
##1B1678	1.00	14.66	1.43	14.66
#FFFFFF	14.66	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7B

Deuteranopia (green-blind)

#002476

Tritanopia (blue-blind)

#003447

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1b1678;
/* rgb */ color: rgb(27, 22, 120);
/* oklch */ color: oklch(29.4% 0.156 273.3);

Tailwind

colors: {
  custom: {
    50: '#6956a0',
    500: '#1b1678',
    950: '#000000',
  },
}

SCSS

$custom: #1b1678;
$custom-light: #6956a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1678",
  "rgb": {
    "r": 27,
    "g": 22,
    "b": 120
  },
  "hsl": {
    "h": 243.061,
    "s": 69.014,
    "l": 27.843
  },
  "oklch": {
    "l": 0.29449,
    "c": 0.15644,
    "h": 273.3
  },
  "luminance": 0.02163
}

Semantic roles & 50–950 ramp

primary

#1B1678

secondary

#A8AD3C

accent

#EC3CE3

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #1B1678

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

Preview Lab → · Contrast checker → · Palette generator →