#101A4C#101A4C

#101A4C is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.5% C 0.093 H 269.6°. Best body text is #FFFFFF at 16.48:1 contrast (WCAG AA passes).

Color values

HEX	#101A4C
RGB	rgb(16, 26, 76)
HSL	hsl(230, 65%, 18%)
HSV	hsv(230, 79%, 30%)
CMYK	cmyk(78.9%, 65.8%, 0%, 70.2%)
CIE-LAB	lab(11.76, 15.73, -32.26)
CIE-LCH	lch(11.76, 35.89, 296.00°)
OKLab	oklab(24.54% -0.0007 -0.0931)
OKLCH	oklch(24.54% 0.093 269.6)
XYZ	xyz(1.8871, 1.3706, 7.0012)
Luminance	0.0137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A4C #4C4210

analogous

#10384C #101A4C #24104C

triadic

#101A4C #4C101A #1A4C10

tetradic

#101A4C #4C1038 #4C4210 #104C24

square

#101A4C #4C1038 #4C4210 #104C24

split-complementary

#101A4C #4C2410 #384C10

monochromatic

#050919 #050919 #101A4C #1B2B7F #253DB1

Accessibility & contrast

On white

16.48

#101A4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#101A4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A4C

16.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A4C	#FFFFFF	#000000	##FFFFFF
##101A4C	1.00	16.48	1.27	16.48
#FFFFFF	16.48	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00224E

Deuteranopia (green-blind)

#001C4B

Tritanopia (blue-blind)

#002730

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #101a4c;
/* rgb */ color: rgb(16, 26, 76);
/* oklch */ color: oklch(24.5% 0.093 269.6);

Tailwind

colors: {
  custom: {
    50: '#58567f',
    500: '#101a4c',
    950: '#000000',
  },
}

SCSS

$custom: #101a4c;
$custom-light: #58567f;
$custom-dark: #000000;

JSON

{
  "hex": "#101a4c",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 76
  },
  "hsl": {
    "h": 230,
    "s": 65.217,
    "l": 18.039
  },
  "oklch": {
    "l": 0.24539,
    "c": 0.09309,
    "h": 269.6
  },
  "luminance": 0.01371
}

Semantic roles & 50–950 ramp

primary

#101A4C

secondary

#867832

accent

#CC40E8

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #101A4C

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

Preview Lab → · Contrast checker → · Palette generator →