#1B124D#1B124D

#1B124D is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.9% C 0.103 H 282.3°. Best body text is #FFFFFF at 16.93:1 contrast (WCAG AA passes).

Color values

HEX	#1B124D
RGB	rgb(27, 18, 77)
HSL	hsl(249, 62%, 19%)
HSV	hsv(249, 77%, 30%)
CMYK	cmyk(64.9%, 76.6%, 0%, 69.8%)
CIE-LAB	lab(10.57, 23.70, -34.87)
CIE-LCH	lch(10.57, 42.16, 304.20°)
OKLab	oklab(23.92% 0.0219 -0.1004)
OKLCH	oklch(23.92% 0.103 282.3)
XYZ	xyz(2.0074, 1.2013, 7.1458)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B124D #444D12

analogous

#12264D #1B124D #38124D

triadic

#1B124D #4D1B12 #124D1B

tetradic

#1B124D #4D1226 #444D12 #124D38

square

#1B124D #4D1226 #444D12 #124D38

split-complementary

#1B124D #4D3812 #264D12

monochromatic

#090619 #0A061B #1B124D #2C1E7F #3E29B0

Accessibility & contrast

On white

16.93

#1B124D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#1B124D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B124D

16.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B124D	#FFFFFF	#000000	##FFFFFF
##1B124D	1.00	16.93	1.24	16.93
#FFFFFF	16.93	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F4F

Deuteranopia (green-blind)

#001B4C

Tritanopia (blue-blind)

#00222E

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #1b124d;
/* rgb */ color: rgb(27, 18, 77);
/* oklch */ color: oklch(23.9% 0.103 282.3);

Tailwind

colors: {
  custom: {
    50: '#5e507f',
    500: '#1b124d',
    950: '#000000',
  },
}

SCSS

$custom: #1b124d;
$custom-light: #5e507f;
$custom-dark: #000000;

JSON

{
  "hex": "#1b124d",
  "rgb": {
    "r": 27,
    "g": 18,
    "b": 77
  },
  "hsl": {
    "h": 249.153,
    "s": 62.105,
    "l": 18.627
  },
  "oklch": {
    "l": 0.23924,
    "c": 0.10279,
    "h": 282.3
  },
  "luminance": 0.01201
}

Semantic roles & 50–950 ramp

primary

#1B124D

secondary

#7A8635

accent

#E543CC

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1B124D

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

Preview Lab → · Contrast checker → · Palette generator →