#10174B#10174B

#10174B is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.8% C 0.096 H 271.1°. Best body text is #FFFFFF at 16.85:1 contrast (WCAG AA passes).

Color values

HEX#10174B
RGBrgb(16, 23, 75)
HSLhsl(233, 65%, 18%)
HSVhsv(233, 79%, 29%)
CMYKcmyk(78.7%, 69.3%, 0%, 70.6%)
CIE-LABlab(10.78, 17.58, -33.17)
CIE-LCHlch(10.78, 37.54, 297.92°)
OKLaboklab(23.79% 0.0019 -0.0958)
OKLCHoklch(23.79% 0.096 271.1)
XYZxyz(1.7897, 1.2308, 6.7985)
Luminance0.0123 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#10174B #4B4410
analogous
#10344B #10174B #26104B
triadic
#10174B #4B1017 #174B10
tetradic
#10174B #4B1034 #4B4410 #104B26
square
#10174B #4B1034 #4B4410 #104B26
split-complementary
#10174B #4B2610 #344B10
monochromatic
#050819 #050819 #10174B #1B267D #2636B0

Accessibility & contrast

On white

16.85
#10174B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.25
#10174B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10174B
16.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##10174B#FFFFFF#000000##FFFFFF
##10174B1.0016.851.2516.85
#FFFFFF16.851.0021.001.00
#0000001.2521.001.0021.00
##FFFFFF16.851.0021.001.00

Color blindness preview

Protanopia (red-blind)
#00204D
Deuteranopia (green-blind)
#001A4A
Tritanopia (blue-blind)
#00242E
Achromatopsia (no color)
#1D1D1D

Design tokens & code

CSS
--color: #10174b;
/* rgb */ color: rgb(16, 23, 75);
/* oklch */ color: oklch(23.8% 0.096 271.1);
Tailwind
colors: {
  custom: {
    50: '#58537e',
    500: '#10174b',
    950: '#000000',
  },
}
SCSS
$custom: #10174b;
$custom-light: #58537e;
$custom-dark: #000000;
JSON
{
  "hex": "#10174b",
  "rgb": {
    "r": 16,
    "g": 23,
    "b": 75
  },
  "hsl": {
    "h": 232.881,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.23786,
    "c": 0.0958,
    "h": 271.1
  },
  "luminance": 0.01231
}

Semantic roles & 50–950 ramp

primary
#10174B
secondary
#857B32
accent
#D440E8
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#04020A
muted
#79787C

Preview Lab

Preview with #10174B

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

Preview Lab → · Contrast checker → · Palette generator →

#10174B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva