#1B145D#1B145D

#1B145D is a dark, vivid blue. Relative luminance 0.015; OKLCH L 26.0% C 0.123 H 277.8°. Best body text is #FFFFFF at 16.09:1 contrast (WCAG AA passes).

Color values

HEX	#1B145D
RGB	rgb(27, 20, 93)
HSL	hsl(246, 65%, 22%)
HSV	hsv(246, 78%, 36%)
CMYK	cmyk(71%, 78.5%, 0%, 63.5%)
CIE-LAB	lab(12.76, 28.18, -42.16)
CIE-LCH	lch(12.76, 50.71, 303.77°)
OKLab	oklab(26.01% 0.0167 -0.1217)
OKLCH	oklch(26.01% 0.123 277.8)
XYZ	xyz(2.6773, 1.5234, 10.5068)
Luminance	0.0152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B145D #565D14

analogous

#14325D #1B145D #3F145D

triadic

#1B145D #5D1B14 #145D1B

tetradic

#1B145D #5D1432 #565D14 #145D3F

square

#1B145D #5D1432 #565D14 #145D3F

split-complementary

#1B145D #5D3F14 #325D14

monochromatic

#070519 #0C092B #1B145D #2A1F8F #382AC2

Accessibility & contrast

On white

16.09

#1B145D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#1B145D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B145D

16.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B145D	#FFFFFF	#000000	##FFFFFF
##1B145D	1.00	16.09	1.30	16.09
#FFFFFF	16.09	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245F

Deuteranopia (green-blind)

#001E5C

Tritanopia (blue-blind)

#002937

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #1b145d;
/* rgb */ color: rgb(27, 20, 93);
/* oklch */ color: oklch(26.0% 0.123 277.8);

Tailwind

colors: {
  custom: {
    50: '#62538c',
    500: '#1b145d',
    950: '#000000',
  },
}

SCSS

$custom: #1b145d;
$custom-light: #62538c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b145d",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 93
  },
  "hsl": {
    "h": 245.753,
    "s": 64.602,
    "l": 22.157
  },
  "oklch": {
    "l": 0.26008,
    "c": 0.1229,
    "h": 277.8
  },
  "luminance": 0.01524
}

Semantic roles & 50–950 ramp

primary

#1B145D

secondary

#8C9538

accent

#E840D8

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1B145D

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

Preview Lab → · Contrast checker → · Palette generator →