#101440#101440

#101440 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.0% C 0.083 H 273.5°. Best body text is #FFFFFF at 17.56:1 contrast (WCAG AA passes).

Color values

HEX	#101440
RGB	rgb(16, 20, 64)
HSL	hsl(235, 60%, 16%)
HSV	hsv(235, 75%, 25%)
CMYK	cmyk(75%, 68.8%, 0%, 74.9%)
CIE-LAB	lab(8.83, 15.22, -28.65)
CIE-LCH	lch(8.83, 32.44, 297.99°)
OKLab	oklab(22.01% 0.0051 -0.0825)
OKLCH	oklch(22.01% 0.083 273.5)
XYZ	xyz(1.3889, 0.9805, 4.9656)
Luminance	0.0098 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101440 #403C10

analogous

#102C40 #101440 #241040

triadic

#101440 #401014 #144010

tetradic

#101440 #40102C #403C10 #104024

square

#101440 #40102C #403C10 #104024

split-complementary

#101440 #402410 #2C4010

monochromatic

#060818 #060818 #101440 #1C2371 #2833A2

Accessibility & contrast

On white

17.56

#101440 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#101440 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101440

17.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101440	#FFFFFF	#000000	##FFFFFF
##101440	1.00	17.56	1.20	17.56
#FFFFFF	17.56	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B41

Deuteranopia (green-blind)

#00173F

Tritanopia (blue-blind)

#001F27

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #101440;
/* rgb */ color: rgb(16, 20, 64);
/* oklch */ color: oklch(22.0% 0.083 273.5);

Tailwind

colors: {
  custom: {
    50: '#555175',
    500: '#101440',
    950: '#000000',
  },
}

SCSS

$custom: #101440;
$custom-light: #555175;
$custom-dark: #000000;

JSON

{
  "hex": "#101440",
  "rgb": {
    "r": 16,
    "g": 20,
    "b": 64
  },
  "hsl": {
    "h": 235,
    "s": 60,
    "l": 15.686
  },
  "oklch": {
    "l": 0.2201,
    "c": 0.0827,
    "h": 273.5
  },
  "luminance": 0.00981
}

Semantic roles & 50–950 ramp

primary

#101440

secondary

#7A7432

accent

#D645E3

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #101440

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

Preview Lab → · Contrast checker → · Palette generator →