#1B124E#1B124E

#1B124E is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 24.0% C 0.104 H 282.0°. Best body text is #FFFFFF at 16.89:1 contrast (WCAG AA passes).

Color values

HEX	#1B124E
RGB	rgb(27, 18, 78)
HSL	hsl(249, 63%, 19%)
HSV	hsv(249, 77%, 31%)
CMYK	cmyk(65.4%, 76.9%, 0%, 69.4%)
CIE-LAB	lab(10.67, 24.06, -35.39)
CIE-LCH	lch(10.67, 42.79, 304.21°)
OKLab	oklab(24.03% 0.0217 -0.1019)
OKLCH	oklch(24.03% 0.104 282)
XYZ	xyz(2.0430, 1.2155, 7.3332)
Luminance	0.0122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.03

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B124E #454E12

analogous

#12274E #1B124E #39124E

triadic

#1B124E #4E1B12 #124E1B

tetradic

#1B124E #4E1227 #454E12 #124E39

square

#1B124E #4E1227 #454E12 #124E39

split-complementary

#1B124E #4E3912 #274E12

monochromatic

#090619 #0A071C #1B124E #2C1D80 #3D29B1

Accessibility & contrast

On white

16.89

#1B124E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#1B124E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B124E

16.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B124E	#FFFFFF	#000000	##FFFFFF
##1B124E	1.00	16.89	1.24	16.89
#FFFFFF	16.89	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F50

Deuteranopia (green-blind)

#001B4D

Tritanopia (blue-blind)

#00222E

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #1b124e;
/* rgb */ color: rgb(27, 18, 78);
/* oklch */ color: oklch(24.0% 0.104 282.0);

Tailwind

colors: {
  custom: {
    50: '#5f5180',
    500: '#1b124e',
    950: '#000000',
  },
}

SCSS

$custom: #1b124e;
$custom-light: #5f5180;
$custom-dark: #000000;

JSON

{
  "hex": "#1b124e",
  "rgb": {
    "r": 27,
    "g": 18,
    "b": 78
  },
  "hsl": {
    "h": 249,
    "s": 62.5,
    "l": 18.824
  },
  "oklch": {
    "l": 0.24031,
    "c": 0.10423,
    "h": 282
  },
  "luminance": 0.01216
}

Semantic roles & 50–950 ramp

primary

#1B124E

secondary

#7B8735

accent

#E642CD

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1B124E

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

Preview Lab → · Contrast checker → · Palette generator →