#101855#101855

#101855 is a dark, moderate blue. Relative luminance 0.014; OKLCH L 25.1% C 0.110 H 270.2°. Best body text is #FFFFFF at 16.36:1 contrast (WCAG AA passes).

Color values

HEX	#101855
RGB	rgb(16, 24, 85)
HSL	hsl(233, 68%, 20%)
HSV	hsv(233, 81%, 33%)
CMYK	cmyk(81.2%, 71.8%, 0%, 66.7%)
CIE-LAB	lab(12.08, 21.00, -37.89)
CIE-LCH	lch(12.08, 43.32, 298.99°)
OKLab	oklab(25.05% 0.0005 -0.1096)
OKLCH	oklch(25.05% 0.11 270.2)
XYZ	xyz(2.1795, 1.4191, 8.7516)
Luminance	0.0142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101855 #554D10

analogous

#103B55 #101855 #2A1055

triadic

#101855 #551018 #185510

tetradic

#101855 #55103B #554D10 #10552A

square

#101855 #55103B #554D10 #10552A

split-complementary

#101855 #552A10 #3B5510

monochromatic

#05071A #060921 #101855 #1A2789 #2335BC

Accessibility & contrast

On white

16.36

#101855 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#101855 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101855

16.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101855	#FFFFFF	#000000	##FFFFFF
##101855	1.00	16.36	1.28	16.36
#FFFFFF	16.36	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002357

Deuteranopia (green-blind)

#001C54

Tritanopia (blue-blind)

#002834

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #101855;
/* rgb */ color: rgb(16, 24, 85);
/* oklch */ color: oklch(25.1% 0.110 270.2);

Tailwind

colors: {
  custom: {
    50: '#5b5486',
    500: '#101855',
    950: '#000000',
  },
}

SCSS

$custom: #101855;
$custom-light: #5b5486;
$custom-dark: #000000;

JSON

{
  "hex": "#101855",
  "rgb": {
    "r": 16,
    "g": 24,
    "b": 85
  },
  "hsl": {
    "h": 233.043,
    "s": 68.317,
    "l": 19.804
  },
  "oklch": {
    "l": 0.25054,
    "c": 0.1096,
    "h": 270.2
  },
  "luminance": 0.01419
}

Semantic roles & 50–950 ramp

primary

#101855

secondary

#8F8432

accent

#D73DEB

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #101855

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

Preview Lab → · Contrast checker → · Palette generator →