#1B115F#1B115F

#1B115F is a dark, vivid blue. Relative luminance 0.015; OKLCH L 25.8% C 0.129 H 278.1°. Best body text is #FFFFFF at 16.25:1 contrast (WCAG AA passes).

Color values

HEX	#1B115F
RGB	rgb(27, 17, 95)
HSL	hsl(248, 70%, 22%)
HSV	hsv(248, 82%, 37%)
CMYK	cmyk(71.6%, 82.1%, 0%, 62.7%)
CIE-LAB	lab(12.35, 30.68, -44.16)
CIE-LCH	lch(12.35, 53.78, 304.79°)
OKLab	oklab(25.79% 0.0182 -0.1276)
OKLCH	oklch(25.79% 0.129 278.1)
XYZ	xyz(2.7173, 1.4599, 10.9628)
Luminance	0.0146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B115F #555F11

analogous

#112E5F #1B115F #42115F

triadic

#1B115F #5F1B11 #115F1B

tetradic

#1B115F #5F112E #555F11 #115F42

square

#1B115F #5F112E #555F11 #115F42

split-complementary

#1B115F #5F4211 #2E5F11

monochromatic

#07051A #0C082B #1B115F #2A1A93 #3924C7

Accessibility & contrast

On white

16.25

#1B115F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#1B115F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B115F

16.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B115F	#FFFFFF	#000000	##FFFFFF
##1B115F	1.00	16.25	1.29	16.25
#FFFFFF	16.25	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002361

Deuteranopia (green-blind)

#001D5E

Tritanopia (blue-blind)

#002837

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #1b115f;
/* rgb */ color: rgb(27, 17, 95);
/* oklch */ color: oklch(25.8% 0.129 278.1);

Tailwind

colors: {
  custom: {
    50: '#63518d',
    500: '#1b115f',
    950: '#000000',
  },
}

SCSS

$custom: #1b115f;
$custom-light: #63518d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b115f",
  "rgb": {
    "r": 27,
    "g": 17,
    "b": 95
  },
  "hsl": {
    "h": 247.692,
    "s": 69.643,
    "l": 21.961
  },
  "oklch": {
    "l": 0.25791,
    "c": 0.12886,
    "h": 278.1
  },
  "luminance": 0.0146
}

Semantic roles & 50–950 ramp

primary

#1B115F

secondary

#8B9834

accent

#EC3BD6

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1B115F

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

Preview Lab → · Contrast checker → · Palette generator →