#101D3D#101D3D

#101D3D is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.9% C 0.064 H 265.3°. Best body text is #FFFFFF at 16.60:1 contrast (WCAG AA passes).

Color values

HEX	#101D3D
RGB	rgb(16, 29, 61)
HSL	hsl(223, 58%, 15%)
HSV	hsv(223, 74%, 24%)
CMYK	cmyk(73.8%, 52.5%, 0%, 76.1%)
CIE-LAB	lab(11.45, 6.94, -22.28)
CIE-LCH	lch(11.45, 23.33, 287.31°)
OKLab	oklab(23.91% -0.0053 -0.0637)
OKLCH	oklch(23.91% 0.064 265.3)
XYZ	xyz(1.4951, 1.3257, 4.5911)
Luminance	0.0133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101D3D #3D3010

analogous

#10333D #101D3D #1A103D

triadic

#101D3D #3D101D #1D3D10

tetradic

#101D3D #3D1033 #3D3010 #103D1A

square

#101D3D #3D1033 #3D3010 #103D1A

split-complementary

#101D3D #3D1A10 #333D10

monochromatic

#060C18 #060C18 #101D3D #1D346D #294B9E

Accessibility & contrast

On white

16.60

#101D3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#101D3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101D3D

16.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101D3D	#FFFFFF	#000000	##FFFFFF
##101D3D	1.00	16.60	1.27	16.60
#FFFFFF	16.60	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D213E

Deuteranopia (green-blind)

#061C3C

Tritanopia (blue-blind)

#00242A

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #101d3d;
/* rgb */ color: rgb(16, 29, 61);
/* oklch */ color: oklch(23.9% 0.064 265.3);

Tailwind

colors: {
  custom: {
    50: '#545873',
    500: '#101d3d',
    950: '#000000',
  },
}

SCSS

$custom: #101d3d;
$custom-light: #545873;
$custom-dark: #000000;

JSON

{
  "hex": "#101d3d",
  "rgb": {
    "r": 16,
    "g": 29,
    "b": 61
  },
  "hsl": {
    "h": 222.667,
    "s": 58.442,
    "l": 15.098
  },
  "oklch": {
    "l": 0.23908,
    "c": 0.06389,
    "h": 265.3
  },
  "luminance": 0.01326
}

Semantic roles & 50–950 ramp

primary

#101D3D

secondary

#776332

accent

#B546E2

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030308

muted

#78787B

Preview Lab

Preview with #101D3D

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

Preview Lab → · Contrast checker → · Palette generator →