#101643#101643

#101643 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.8% C 0.085 H 272.0°. Best body text is #FFFFFF at 17.24:1 contrast (WCAG AA passes).

Color values

HEX	#101643
RGB	rgb(16, 22, 67)
HSL	hsl(233, 61%, 16%)
HSV	hsv(233, 76%, 26%)
CMYK	cmyk(76.1%, 67.2%, 0%, 73.7%)
CIE-LAB	lab(9.71, 14.96, -29.33)
CIE-LCH	lch(9.71, 32.92, 297.02°)
OKLab	oklab(22.75% 0.003 -0.0845)
OKLCH	oklch(22.75% 0.085 272)
XYZ	xyz(1.5134, 1.0891, 5.4396)
Luminance	0.0109 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101643 #433D10

analogous

#103043 #101643 #241043

triadic

#101643 #431016 #164310

tetradic

#101643 #431030 #433D10 #104324

square

#101643 #431030 #433D10 #104324

split-complementary

#101643 #432410 #304310

monochromatic

#060819 #060819 #101643 #1C2674 #2836A6

Accessibility & contrast

On white

17.24

#101643 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#101643 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101643

17.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101643	#FFFFFF	#000000	##FFFFFF
##101643	1.00	17.24	1.22	17.24
#FFFFFF	17.24	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D44

Deuteranopia (green-blind)

#001942

Tritanopia (blue-blind)

#002129

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #101643;
/* rgb */ color: rgb(16, 22, 67);
/* oklch */ color: oklch(22.8% 0.085 272.0);

Tailwind

colors: {
  custom: {
    50: '#565278',
    500: '#101643',
    950: '#000000',
  },
}

SCSS

$custom: #101643;
$custom-light: #565278;
$custom-dark: #000000;

JSON

{
  "hex": "#101643",
  "rgb": {
    "r": 16,
    "g": 22,
    "b": 67
  },
  "hsl": {
    "h": 232.941,
    "s": 61.446,
    "l": 16.275
  },
  "oklch": {
    "l": 0.22754,
    "c": 0.08457,
    "h": 272
  },
  "luminance": 0.01089
}

Semantic roles & 50–950 ramp

primary

#101643

secondary

#7D7432

accent

#D243E5

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #101643

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

Preview Lab → · Contrast checker → · Palette generator →