#101A4D#101A4D

#101A4D is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.6% C 0.095 H 269.6°. Best body text is #FFFFFF at 16.44:1 contrast (WCAG AA passes).

Color values

HEX	#101A4D
RGB	rgb(16, 26, 77)
HSL	hsl(230, 66%, 18%)
HSV	hsv(230, 79%, 30%)
CMYK	cmyk(79.2%, 66.2%, 0%, 69.8%)
CIE-LAB	lab(11.85, 16.16, -32.80)
CIE-LCH	lch(11.85, 36.56, 296.23°)
OKLab	oklab(24.64% -0.0007 -0.0947)
OKLCH	oklch(24.64% 0.095 269.6)
XYZ	xyz(1.9222, 1.3846, 7.1857)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A4D #4D4310

analogous

#10384D #101A4D #24104D

triadic

#101A4D #4D101A #1A4D10

tetradic

#101A4D #4D1038 #4D4310 #104D24

square

#101A4D #4D1038 #4D4310 #104D24

split-complementary

#101A4D #4D2410 #384D10

monochromatic

#050919 #05091A #101A4D #1B2B80 #253CB2

Accessibility & contrast

On white

16.44

#101A4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#101A4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A4D

16.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A4D	#FFFFFF	#000000	##FFFFFF
##101A4D	1.00	16.44	1.28	16.44
#FFFFFF	16.44	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00224F

Deuteranopia (green-blind)

#001C4C

Tritanopia (blue-blind)

#002730

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #101a4d;
/* rgb */ color: rgb(16, 26, 77);
/* oklch */ color: oklch(24.6% 0.095 269.6);

Tailwind

colors: {
  custom: {
    50: '#59567f',
    500: '#101a4d',
    950: '#000000',
  },
}

SCSS

$custom: #101a4d;
$custom-light: #59567f;
$custom-dark: #000000;

JSON

{
  "hex": "#101a4d",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 77
  },
  "hsl": {
    "h": 230.164,
    "s": 65.591,
    "l": 18.235
  },
  "oklch": {
    "l": 0.24639,
    "c": 0.09466,
    "h": 269.6
  },
  "luminance": 0.01385
}

Semantic roles & 50–950 ramp

primary

#101A4D

secondary

#877932

accent

#CD3FE9

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #101A4D

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

Preview Lab → · Contrast checker → · Palette generator →