#1B135D#1B135D

#1B135D is a dark, vivid blue. Relative luminance 0.015; OKLCH L 25.9% C 0.124 H 278.1°. Best body text is #FFFFFF at 16.18:1 contrast (WCAG AA passes).

Color values

HEX	#1B135D
RGB	rgb(27, 19, 93)
HSL	hsl(246, 66%, 22%)
HSV	hsv(246, 80%, 36%)
CMYK	cmyk(71%, 79.6%, 0%, 63.5%)
CIE-LAB	lab(12.54, 28.80, -42.52)
CIE-LCH	lch(12.54, 51.35, 304.11°)
OKLab	oklab(25.85% 0.0174 -0.1228)
OKLCH	oklch(25.85% 0.124 278.1)
XYZ	xyz(2.6600, 1.4888, 10.5010)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B135D #555D13

analogous

#13305D #1B135D #40135D

triadic

#1B135D #5D1B13 #135D1B

tetradic

#1B135D #5D1330 #555D13 #135D40

square

#1B135D #5D1330 #555D13 #135D40

split-complementary

#1B135D #5D4013 #305D13

monochromatic

#070519 #0C092A #1B135D #2A1D90 #3928C3

Accessibility & contrast

On white

16.18

#1B135D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#1B135D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B135D

16.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B135D	#FFFFFF	#000000	##FFFFFF
##1B135D	1.00	16.18	1.30	16.18
#FFFFFF	16.18	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245F

Deuteranopia (green-blind)

#001E5C

Tritanopia (blue-blind)

#002837

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #1b135d;
/* rgb */ color: rgb(27, 19, 93);
/* oklch */ color: oklch(25.9% 0.124 278.1);

Tailwind

colors: {
  custom: {
    50: '#62528c',
    500: '#1b135d',
    950: '#000000',
  },
}

SCSS

$custom: #1b135d;
$custom-light: #62528c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b135d",
  "rgb": {
    "r": 27,
    "g": 19,
    "b": 93
  },
  "hsl": {
    "h": 246.486,
    "s": 66.071,
    "l": 21.961
  },
  "oklch": {
    "l": 0.25853,
    "c": 0.12402,
    "h": 278.1
  },
  "luminance": 0.01489
}

Semantic roles & 50–950 ramp

primary

#1B135D

secondary

#8B9537

accent

#E93FD7

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1B135D

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

Preview Lab → · Contrast checker → · Palette generator →