#10164B#10164B

#10164B is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.6% C 0.097 H 271.6°. Best body text is #FFFFFF at 16.96:1 contrast (WCAG AA passes).

Color values

HEX	#10164B
RGB	rgb(16, 22, 75)
HSL	hsl(234, 65%, 18%)
HSV	hsv(234, 79%, 29%)
CMYK	cmyk(78.7%, 70.7%, 0%, 70.6%)
CIE-LAB	lab(10.50, 18.33, -33.63)
CIE-LCH	lch(10.50, 38.30, 298.58°)
OKLab	oklab(23.58% 0.0027 -0.0972)
OKLCH	oklch(23.58% 0.097 271.6)
XYZ	xyz(1.7702, 1.1918, 6.7920)
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

#10164B #4B4510

analogous

#10334B #10164B #27104B

triadic

#10164B #4B1016 #164B10

tetradic

#10164B #4B1033 #4B4510 #104B27

square

#10164B #4B1033 #4B4510 #104B27

split-complementary

#10164B #4B2710 #334B10

monochromatic

#050719 #050719 #10164B #1B257D #2634B0

Accessibility & contrast

On white

16.96

#10164B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#10164B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10164B

16.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10164B	#FFFFFF	#000000	##FFFFFF
##10164B	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)

#001F4D

Deuteranopia (green-blind)

#001A4A

Tritanopia (blue-blind)

#00242E

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #10164b;
/* rgb */ color: rgb(16, 22, 75);
/* oklch */ color: oklch(23.6% 0.097 271.6);

Tailwind

colors: {
  custom: {
    50: '#58537e',
    500: '#10164b',
    950: '#000000',
  },
}

SCSS

$custom: #10164b;
$custom-light: #58537e;
$custom-dark: #000000;

JSON

{
  "hex": "#10164b",
  "rgb": {
    "r": 16,
    "g": 22,
    "b": 75
  },
  "hsl": {
    "h": 233.898,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.23576,
    "c": 0.0972,
    "h": 271.6
  },
  "luminance": 0.01192
}

Semantic roles & 50–950 ramp

primary

#10164B

secondary

#857C32

accent

#D740E8

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #10164B

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

Preview Lab → · Contrast checker → · Palette generator →