#101A3B#101A3B

#101A3B is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.0% C 0.065 H 268.3°. Best body text is #FFFFFF at 17.03:1 contrast (WCAG AA passes).

Color values

HEX#101A3B
RGBrgb(16, 26, 59)
HSLhsl(226, 57%, 15%)
HSVhsv(226, 73%, 23%)
CMYKcmyk(72.9%, 55.9%, 0%, 76.9%)
CIE-LABlab(10.29, 8.41, -22.72)
CIE-LCHlch(10.29, 24.23, 290.32°)
OKLaboklab(22.97% -0.002 -0.065)
OKLCHoklch(22.97% 0.065 268.3)
XYZxyz(1.3722, 1.1646, 4.2893)
Luminance0.0117 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#101A3B #3B3110
analogous
#102F3B #101A3B #1C103B
triadic
#101A3B #3B101A #1A3B10
tetradic
#101A3B #3B102F #3B3110 #103B1C
square
#101A3B #3B102F #3B3110 #103B1C
split-complementary
#101A3B #3B1C10 #2F3B10
monochromatic
#070B18 #070B18 #101A3B #1D2F6B #2A449B

Accessibility & contrast

On white

17.03
#101A3B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.23
#101A3B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A3B
17.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##101A3B#FFFFFF#000000##FFFFFF
##101A3B1.0017.031.2317.03
#FFFFFF17.031.0021.001.00
#0000001.2321.001.0021.00
##FFFFFF17.031.0021.001.00

Color blindness preview

Protanopia (red-blind)
#091E3C
Deuteranopia (green-blind)
#031A3A
Tritanopia (blue-blind)
#002227
Achromatopsia (no color)
#1C1C1C

Design tokens & code

CSS
--color: #101a3b;
/* rgb */ color: rgb(16, 26, 59);
/* oklch */ color: oklch(23.0% 0.065 268.3);
Tailwind
colors: {
  custom: {
    50: '#545671',
    500: '#101a3b',
    950: '#000000',
  },
}
SCSS
$custom: #101a3b;
$custom-light: #545671;
$custom-dark: #000000;
JSON
{
  "hex": "#101a3b",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 59
  },
  "hsl": {
    "h": 226.047,
    "s": 57.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.22972,
    "c": 0.06505,
    "h": 268.3
  },
  "luminance": 0.01165
}

Semantic roles & 50–950 ramp

primary
#101A3B
secondary
#756532
accent
#BD47E1
background
#F5F4F6
surface
#E8E8EC
border
#C4C4C7
text
#030307
muted
#78787A

Preview Lab

Preview with #101A3B

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

Preview Lab → · Contrast checker → · Palette generator →

#101A3B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva