#1B124C#1B124C

#1B124C is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.8% C 0.101 H 282.6°. Best body text is #FFFFFF at 16.97:1 contrast (WCAG AA passes).

Color values

HEX	#1B124C
RGB	rgb(27, 18, 76)
HSL	hsl(249, 62%, 18%)
HSV	hsv(249, 76%, 30%)
CMYK	cmyk(64.5%, 76.3%, 0%, 70.2%)
CIE-LAB	lab(10.46, 23.33, -34.35)
CIE-LCH	lch(10.46, 41.52, 304.19°)
OKLab	oklab(23.82% 0.0221 -0.0989)
OKLCH	oklch(23.82% 0.101 282.6)
XYZ	xyz(1.9724, 1.1873, 6.9613)
Luminance	0.0119 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B124C #434C12

analogous

#12264C #1B124C #38124C

triadic

#1B124C #4C1B12 #124C1B

tetradic

#1B124C #4C1226 #434C12 #124C38

square

#1B124C #4C1226 #434C12 #124C38

split-complementary

#1B124C #4C3812 #264C12

monochromatic

#090619 #09061B #1B124C #2D1E7D #3E29AF

Accessibility & contrast

On white

16.97

#1B124C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#1B124C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B124C

16.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B124C	#FFFFFF	#000000	##FFFFFF
##1B124C	1.00	16.97	1.24	16.97
#FFFFFF	16.97	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E4E

Deuteranopia (green-blind)

#001A4B

Tritanopia (blue-blind)

#01212D

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #1b124c;
/* rgb */ color: rgb(27, 18, 76);
/* oklch */ color: oklch(23.8% 0.101 282.6);

Tailwind

colors: {
  custom: {
    50: '#5e507f',
    500: '#1b124c',
    950: '#000000',
  },
}

SCSS

$custom: #1b124c;
$custom-light: #5e507f;
$custom-dark: #000000;

JSON

{
  "hex": "#1b124c",
  "rgb": {
    "r": 27,
    "g": 18,
    "b": 76
  },
  "hsl": {
    "h": 249.31,
    "s": 61.702,
    "l": 18.431
  },
  "oklch": {
    "l": 0.23818,
    "c": 0.10133,
    "h": 282.6
  },
  "luminance": 0.01187
}

Semantic roles & 50–950 ramp

primary

#1B124C

secondary

#798535

accent

#E543CC

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1B124C

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

Preview Lab → · Contrast checker → · Palette generator →