#1B146A#1B146A

#1B146A is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.5% C 0.140 H 275.5°. Best body text is #FFFFFF at 15.50:1 contrast (WCAG AA passes).

Color values

HEX	#1B146A
RGB	rgb(27, 20, 106)
HSL	hsl(245, 68%, 25%)
HSV	hsv(245, 81%, 42%)
CMYK	cmyk(74.5%, 81.1%, 0%, 58.4%)
CIE-LAB	lab(14.25, 32.77, -48.31)
CIE-LCH	lch(14.25, 58.37, 304.15°)
OKLab	oklab(27.51% 0.0136 -0.1397)
OKLCH	oklch(27.51% 0.14 275.5)
XYZ	xyz(3.3028, 1.7736, 13.8012)
Luminance	0.0177 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B146A #636A14

analogous

#14386A #1B146A #46146A

triadic

#1B146A #6A1B14 #146A1B

tetradic

#1B146A #6A1438 #636A14 #146A46

square

#1B146A #6A1438 #636A14 #146A46

split-complementary

#1B146A #6A4614 #386A14

monochromatic

#07051A #0E0A37 #1B146A #281E9D #3527D1

Accessibility & contrast

On white

15.50

#1B146A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#1B146A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B146A

15.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B146A	#FFFFFF	#000000	##FFFFFF
##1B146A	1.00	15.50	1.35	15.50
#FFFFFF	15.50	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00286C

Deuteranopia (green-blind)

#002068

Tritanopia (blue-blind)

#002E3E

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1b146a;
/* rgb */ color: rgb(27, 20, 106);
/* oklch */ color: oklch(27.5% 0.140 275.5);

Tailwind

colors: {
  custom: {
    50: '#665396',
    500: '#1b146a',
    950: '#000000',
  },
}

SCSS

$custom: #1b146a;
$custom-light: #665396;
$custom-dark: #000000;

JSON

{
  "hex": "#1b146a",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 106
  },
  "hsl": {
    "h": 244.884,
    "s": 68.254,
    "l": 24.706
  },
  "oklch": {
    "l": 0.27509,
    "c": 0.14033,
    "h": 275.5
  },
  "luminance": 0.01774
}

Semantic roles & 50–950 ramp

primary

#1B146A

secondary

#98A139

accent

#EB3DDD

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020D

muted

#7A787E

Preview Lab

Preview with #1B146A

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

Preview Lab → · Contrast checker → · Palette generator →