#101A4A#101A4A

#101A4A is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.3% C 0.090 H 269.5°. Best body text is #FFFFFF at 16.55:1 contrast (WCAG AA passes).

Color values

HEX	#101A4A
RGB	rgb(16, 26, 74)
HSL	hsl(230, 64%, 18%)
HSV	hsv(230, 78%, 29%)
CMYK	cmyk(78.4%, 64.9%, 0%, 71%)
CIE-LAB	lab(11.57, 14.88, -31.18)
CIE-LCH	lch(11.57, 34.55, 295.51°)
OKLab	oklab(24.34% -0.0007 -0.0899)
OKLCH	oklch(24.34% 0.09 269.5)
XYZ	xyz(1.8187, 1.3432, 6.6406)
Luminance	0.0134 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A4A #4A4010

analogous

#10374A #101A4A #23104A

triadic

#101A4A #4A101A #1A4A10

tetradic

#101A4A #4A1037 #4A4010 #104A23

square

#101A4A #4A1037 #4A4010 #104A23

split-complementary

#101A4A #4A2310 #374A10

monochromatic

#050919 #050919 #101A4A #1B2C7C #263DAF

Accessibility & contrast

On white

16.55

#101A4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#101A4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A4A

16.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A4A	#FFFFFF	#000000	##FFFFFF
##101A4A	1.00	16.55	1.27	16.55
#FFFFFF	16.55	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00214C

Deuteranopia (green-blind)

#001C49

Tritanopia (blue-blind)

#00262F

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #101a4a;
/* rgb */ color: rgb(16, 26, 74);
/* oklch */ color: oklch(24.3% 0.090 269.5);

Tailwind

colors: {
  custom: {
    50: '#58567d',
    500: '#101a4a',
    950: '#000000',
  },
}

SCSS

$custom: #101a4a;
$custom-light: #58567d;
$custom-dark: #000000;

JSON

{
  "hex": "#101a4a",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 74
  },
  "hsl": {
    "h": 229.655,
    "s": 64.444,
    "l": 17.647
  },
  "oklch": {
    "l": 0.24343,
    "c": 0.08992,
    "h": 269.5
  },
  "luminance": 0.01343
}

Semantic roles & 50–950 ramp

primary

#101A4A

secondary

#847632

accent

#CB40E7

background

#F5F5F7

surface

#E9E8EE

border

#C5C4C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #101A4A

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

Preview Lab → · Contrast checker → · Palette generator →