#1B146E#1B146E

#1B146E is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.0% C 0.146 H 274.9°. Best body text is #FFFFFF at 15.31:1 contrast (WCAG AA passes).

Color values

HEX	#1B146E
RGB	rgb(27, 20, 110)
HSL	hsl(245, 69%, 25%)
HSV	hsv(245, 82%, 43%)
CMYK	cmyk(75.5%, 81.8%, 0%, 56.9%)
CIE-LAB	lab(14.73, 34.15, -50.14)
CIE-LCH	lch(14.73, 60.66, 304.26°)
OKLab	oklab(27.98% 0.0125 -0.145)
OKLCH	oklch(27.98% 0.146 274.9)
XYZ	xyz(3.5157, 1.8588, 14.9223)
Luminance	0.0186 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B146E #676E14

analogous

#143A6E #1B146E #48146E

triadic

#1B146E #6E1B14 #146E1B

tetradic

#1B146E #6E143A #676E14 #146E48

square

#1B146E #6E143A #676E14 #146E48

split-complementary

#1B146E #6E4814 #3A6E14

monochromatic

#06051A #0E0B3A #1B146E #281DA2 #3427D6

Accessibility & contrast

On white

15.31

#1B146E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#1B146E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B146E

15.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B146E	#FFFFFF	#000000	##FFFFFF
##1B146E	1.00	15.31	1.37	15.31
#FFFFFF	15.31	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002971

Deuteranopia (green-blind)

#00216C

Tritanopia (blue-blind)

#002F41

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1b146e;
/* rgb */ color: rgb(27, 20, 110);
/* oklch */ color: oklch(28.0% 0.146 274.9);

Tailwind

colors: {
  custom: {
    50: '#675499',
    500: '#1b146e',
    950: '#000000',
  },
}

SCSS

$custom: #1b146e;
$custom-light: #675499;
$custom-dark: #000000;

JSON

{
  "hex": "#1b146e",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 110
  },
  "hsl": {
    "h": 244.667,
    "s": 69.231,
    "l": 25.49
  },
  "oklch": {
    "l": 0.27983,
    "c": 0.14553,
    "h": 274.9
  },
  "luminance": 0.01859
}

Semantic roles & 50–950 ramp

primary

#1B146E

secondary

#9CA539

accent

#EC3CDE

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1B146E

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

Preview Lab → · Contrast checker → · Palette generator →