#1B115E#1B115E

#1B115E is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.7% C 0.128 H 278.3°. Best body text is #FFFFFF at 16.30:1 contrast (WCAG AA passes).

Color values

HEX	#1B115E
RGB	rgb(27, 17, 94)
HSL	hsl(248, 69%, 22%)
HSV	hsv(248, 82%, 37%)
CMYK	cmyk(71.3%, 81.9%, 0%, 63.1%)
CIE-LAB	lab(12.23, 30.34, -43.69)
CIE-LCH	lch(12.23, 53.19, 304.78°)
OKLab	oklab(25.67% 0.0185 -0.1262)
OKLCH	oklch(25.67% 0.128 278.3)
XYZ	xyz(2.6722, 1.4418, 10.7250)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B115E #545E11

analogous

#112E5E #1B115E #42115E

triadic

#1B115E #5E1B11 #115E1B

tetradic

#1B115E #5E112E #545E11 #115E42

square

#1B115E #5E112E #545E11 #115E42

split-complementary

#1B115E #5E4211 #2E5E11

monochromatic

#07051A #0C082A #1B115E #2A1A92 #3924C6

Accessibility & contrast

On white

16.30

#1B115E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#1B115E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B115E

16.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B115E	#FFFFFF	#000000	##FFFFFF
##1B115E	1.00	16.30	1.29	16.30
#FFFFFF	16.30	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002360

Deuteranopia (green-blind)

#001D5D

Tritanopia (blue-blind)

#002837

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #1b115e;
/* rgb */ color: rgb(27, 17, 94);
/* oklch */ color: oklch(25.7% 0.128 278.3);

Tailwind

colors: {
  custom: {
    50: '#63518d',
    500: '#1b115e',
    950: '#000000',
  },
}

SCSS

$custom: #1b115e;
$custom-light: #63518d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b115e",
  "rgb": {
    "r": 27,
    "g": 17,
    "b": 94
  },
  "hsl": {
    "h": 247.792,
    "s": 69.369,
    "l": 21.765
  },
  "oklch": {
    "l": 0.25674,
    "c": 0.12753,
    "h": 278.3
  },
  "luminance": 0.01442
}

Semantic roles & 50–950 ramp

primary

#1B115E

secondary

#8A9734

accent

#EC3CD5

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1B115E

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

Preview Lab → · Contrast checker → · Palette generator →