#10184B#10184B

#10184B is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.0% C 0.094 H 270.6°. Best body text is #FFFFFF at 16.74:1 contrast (WCAG AA passes).

Color values

HEX	#10184B
RGB	rgb(16, 24, 75)
HSL	hsl(232, 65%, 18%)
HSV	hsv(232, 79%, 29%)
CMYK	cmyk(78.7%, 68%, 0%, 70.6%)
CIE-LAB	lab(11.07, 16.83, -32.69)
CIE-LCH	lch(11.07, 36.77, 297.23°)
OKLab	oklab(24% 0.001 -0.0944)
OKLCH	oklch(24% 0.094 270.6)
XYZ	xyz(1.8099, 1.2712, 6.8052)
Luminance	0.0127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10184B #4B4310

analogous

#10354B #10184B #25104B

triadic

#10184B #4B1018 #184B10

tetradic

#10184B #4B1035 #4B4310 #104B25

square

#10184B #4B1035 #4B4310 #104B25

split-complementary

#10184B #4B2510 #354B10

monochromatic

#050819 #050819 #10184B #1B287D #2638B0

Accessibility & contrast

On white

16.74

#10184B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#10184B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10184B

16.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10184B	#FFFFFF	#000000	##FFFFFF
##10184B	1.00	16.74	1.25	16.74
#FFFFFF	16.74	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00204D

Deuteranopia (green-blind)

#001B4A

Tritanopia (blue-blind)

#00252E

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #10184b;
/* rgb */ color: rgb(16, 24, 75);
/* oklch */ color: oklch(24.0% 0.094 270.6);

Tailwind

colors: {
  custom: {
    50: '#58547e',
    500: '#10184b',
    950: '#000000',
  },
}

SCSS

$custom: #10184b;
$custom-light: #58547e;
$custom-dark: #000000;

JSON

{
  "hex": "#10184b",
  "rgb": {
    "r": 16,
    "g": 24,
    "b": 75
  },
  "hsl": {
    "h": 231.864,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.24,
    "c": 0.09438,
    "h": 270.6
  },
  "luminance": 0.01271
}

Semantic roles & 50–950 ramp

primary

#10184B

secondary

#857A32

accent

#D140E8

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #10184B

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

Preview Lab → · Contrast checker → · Palette generator →