#1B115D#1B115D

#1B115D is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.6% C 0.126 H 278.5°. Best body text is #FFFFFF at 16.34:1 contrast (WCAG AA passes).

Color values

HEX	#1B115D
RGB	rgb(27, 17, 93)
HSL	hsl(248, 69%, 22%)
HSV	hsv(248, 82%, 36%)
CMYK	cmyk(71%, 81.7%, 0%, 63.5%)
CIE-LAB	lab(12.12, 29.99, -43.21)
CIE-LCH	lch(12.12, 52.60, 304.77°)
OKLab	oklab(25.56% 0.0188 -0.1248)
OKLCH	oklch(25.56% 0.126 278.5)
XYZ	xyz(2.6276, 1.4240, 10.4902)
Luminance	0.0142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B115D #535D11

analogous

#112D5D #1B115D #41115D

triadic

#1B115D #5D1B11 #115D1B

tetradic

#1B115D #5D112D #535D11 #115D41

square

#1B115D #5D112D #535D11 #115D41

split-complementary

#1B115D #5D4111 #2D5D11

monochromatic

#08051A #0C0829 #1B115D #2A1A91 #3924C4

Accessibility & contrast

On white

16.34

#1B115D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#1B115D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B115D

16.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B115D	#FFFFFF	#000000	##FFFFFF
##1B115D	1.00	16.34	1.28	16.34
#FFFFFF	16.34	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00235F

Deuteranopia (green-blind)

#001D5C

Tritanopia (blue-blind)

#002736

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #1b115d;
/* rgb */ color: rgb(27, 17, 93);
/* oklch */ color: oklch(25.6% 0.126 278.5);

Tailwind

colors: {
  custom: {
    50: '#62518c',
    500: '#1b115d',
    950: '#000000',
  },
}

SCSS

$custom: #1b115d;
$custom-light: #62518c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b115d",
  "rgb": {
    "r": 27,
    "g": 17,
    "b": 93
  },
  "hsl": {
    "h": 247.895,
    "s": 69.091,
    "l": 21.569
  },
  "oklch": {
    "l": 0.25557,
    "c": 0.1262,
    "h": 278.5
  },
  "luminance": 0.01424
}

Semantic roles & 50–950 ramp

primary

#1B115D

secondary

#899634

accent

#EC3CD5

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1B115D

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

Preview Lab → · Contrast checker → · Palette generator →