#101748#101748

#101748 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.5% C 0.091 H 271.3°. Best body text is #FFFFFF at 16.96:1 contrast (WCAG AA passes).

Color values

HEX	#101748
RGB	rgb(16, 23, 72)
HSL	hsl(233, 64%, 17%)
HSV	hsv(233, 78%, 28%)
CMYK	cmyk(77.8%, 68.1%, 0%, 71.8%)
CIE-LAB	lab(10.49, 16.31, -31.56)
CIE-LCH	lch(10.49, 35.53, 297.33°)
OKLab	oklab(23.48% 0.002 -0.0911)
OKLCH	oklch(23.48% 0.091 271.3)
XYZ	xyz(1.6894, 1.1907, 6.2704)
Luminance	0.0119 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101748 #484110

analogous

#103348 #101748 #251048

triadic

#101748 #481017 #174810

tetradic

#101748 #481033 #484110 #104825

square

#101748 #481033 #484110 #104825

split-complementary

#101748 #482510 #334810

monochromatic

#060819 #060819 #101748 #1B277A #2637AC

Accessibility & contrast

On white

16.96

#101748 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#101748 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101748

16.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101748	#FFFFFF	#000000	##FFFFFF
##101748	1.00	16.96	1.24	16.96
#FFFFFF	16.96	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F4A

Deuteranopia (green-blind)

#001A47

Tritanopia (blue-blind)

#00232C

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #101748;
/* rgb */ color: rgb(16, 23, 72);
/* oklch */ color: oklch(23.5% 0.091 271.3);

Tailwind

colors: {
  custom: {
    50: '#57537b',
    500: '#101748',
    950: '#000000',
  },
}

SCSS

$custom: #101748;
$custom-light: #57537b;
$custom-dark: #000000;

JSON

{
  "hex": "#101748",
  "rgb": {
    "r": 16,
    "g": 23,
    "b": 72
  },
  "hsl": {
    "h": 232.5,
    "s": 63.636,
    "l": 17.255
  },
  "oklch": {
    "l": 0.23478,
    "c": 0.0911,
    "h": 271.3
  },
  "luminance": 0.01191
}

Semantic roles & 50–950 ramp

primary

#101748

secondary

#827832

accent

#D241E7

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#040209

muted

#79787B

Preview Lab

Preview with #101748

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

Preview Lab → · Contrast checker → · Palette generator →