#101E5B#101E5B

#101E5B is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.9% C 0.111 H 267.9°. Best body text is #FFFFFF at 15.45:1 contrast (WCAG AA passes).

Color values

HEX#101E5B
RGBrgb(16, 30, 91)
HSLhsl(229, 70%, 21%)
HSVhsv(229, 82%, 36%)
CMYKcmyk(82.4%, 67%, 0%, 64.3%)
CIE-LABlab(14.37, 19.10, -38.20)
CIE-LCHlch(14.37, 42.71, 296.57°)
OKLaboklab(26.92% -0.004 -0.1104)
OKLCHoklch(26.92% 0.111 267.9)
XYZxyz(2.5656, 1.7938, 10.1065)
Luminance0.0179 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#101E5B #5B4D10
analogous
#10435B #101E5B #27105B
triadic
#101E5B #5B101E #1E5B10
tetradic
#101E5B #5B1043 #5B4D10 #105B27
square
#101E5B #5B1043 #5B4D10 #105B27
split-complementary
#101E5B #5B2710 #435B10
monochromatic
#05091A #070D27 #101E5B #192F8F #2240C3

Accessibility & contrast

On white

15.45
#101E5B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.36
#101E5B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101E5B
15.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##101E5B#FFFFFF#000000##FFFFFF
##101E5B1.0015.451.3615.45
#FFFFFF15.451.0021.001.00
#0000001.3621.001.0021.00
##FFFFFF15.451.0021.001.00

Color blindness preview

Protanopia (red-blind)
#00285D
Deuteranopia (green-blind)
#00215A
Tritanopia (blue-blind)
#002E39
Achromatopsia (no color)
#242424

Design tokens & code

CSS
--color: #101e5b;
/* rgb */ color: rgb(16, 30, 91);
/* oklch */ color: oklch(26.9% 0.111 267.9);
Tailwind
colors: {
  custom: {
    50: '#5c598a',
    500: '#101e5b',
    950: '#000000',
  },
}
SCSS
$custom: #101e5b;
$custom-light: #5c598a;
$custom-dark: #000000;
JSON
{
  "hex": "#101e5b",
  "rgb": {
    "r": 16,
    "g": 30,
    "b": 91
  },
  "hsl": {
    "h": 228.8,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.26916,
    "c": 0.11052,
    "h": 267.9
  },
  "luminance": 0.01794
}

Semantic roles & 50–950 ramp

primary
#101E5B
secondary
#948233
accent
#CC3BED
background
#F5F5F8
surface
#E9E9F0
border
#C5C5CB
text
#05030C
muted
#79787D

Preview Lab

Preview with #101E5B

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

Preview Lab → · Contrast checker → · Palette generator →

#101E5B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva