#1B146B#1B146B

#1B146B is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.6% C 0.142 H 275.4°. Best body text is #FFFFFF at 15.45:1 contrast (WCAG AA passes).

Color values

HEX	#1B146B
RGB	rgb(27, 20, 107)
HSL	hsl(245, 69%, 25%)
HSV	hsv(245, 81%, 42%)
CMYK	cmyk(74.8%, 81.3%, 0%, 58%)
CIE-LAB	lab(14.37, 33.11, -48.77)
CIE-LCH	lch(14.37, 58.95, 304.18°)
OKLab	oklab(27.63% 0.0133 -0.141)
OKLCH	oklch(27.63% 0.142 275.4)
XYZ	xyz(3.3551, 1.7945, 14.0766)
Luminance	0.0180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B146B #646B14

analogous

#14386B #1B146B #47146B

triadic

#1B146B #6B1B14 #146B1B

tetradic

#1B146B #6B1438 #646B14 #146B47

square

#1B146B #6B1438 #646B14 #146B47

split-complementary

#1B146B #6B4714 #386B14

monochromatic

#07051A #0E0A37 #1B146B #281E9F #3527D2

Accessibility & contrast

On white

15.45

#1B146B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1B146B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B146B

15.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B146B	#FFFFFF	#000000	##FFFFFF
##1B146B	1.00	15.45	1.36	15.45
#FFFFFF	15.45	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00286D

Deuteranopia (green-blind)

#002069

Tritanopia (blue-blind)

#002E3F

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1b146b;
/* rgb */ color: rgb(27, 20, 107);
/* oklch */ color: oklch(27.6% 0.142 275.4);

Tailwind

colors: {
  custom: {
    50: '#665396',
    500: '#1b146b',
    950: '#000000',
  },
}

SCSS

$custom: #1b146b;
$custom-light: #665396;
$custom-dark: #000000;

JSON

{
  "hex": "#1b146b",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 107
  },
  "hsl": {
    "h": 244.828,
    "s": 68.504,
    "l": 24.902
  },
  "oklch": {
    "l": 0.27627,
    "c": 0.14164,
    "h": 275.4
  },
  "luminance": 0.01795
}

Semantic roles & 50–950 ramp

primary

#1B146B

secondary

#99A239

accent

#EB3CDD

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #1B146B

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

Preview Lab → · Contrast checker → · Palette generator →