#101556#101556

#101556 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.6% C 0.115 H 271.1°. Best body text is #FFFFFF at 16.62:1 contrast (WCAG AA passes).

Color values

HEX	#101556
RGB	rgb(16, 21, 86)
HSL	hsl(236, 69%, 20%)
HSV	hsv(236, 81%, 34%)
CMYK	cmyk(81.4%, 75.6%, 0%, 66.3%)
CIE-LAB	lab(11.40, 23.54, -39.69)
CIE-LCH	lch(11.40, 46.15, 300.67°)
OKLab	oklab(24.59% 0.0023 -0.1149)
OKLCH	oklch(24.59% 0.115 271.1)
XYZ	xyz(2.1610, 1.3181, 8.9428)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101556 #565110

analogous

#103856 #101556 #2E1056

triadic

#101556 #561015 #155610

tetradic

#101556 #561038 #565110 #10562E

square

#101556 #561038 #565110 #10562E

split-complementary

#101556 #562E10 #385610

monochromatic

#05061A #060822 #101556 #1A228A #232EBD

Accessibility & contrast

On white

16.62

#101556 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#101556 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101556

16.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101556	#FFFFFF	#000000	##FFFFFF
##101556	1.00	16.62	1.26	16.62
#FFFFFF	16.62	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002258

Deuteranopia (green-blind)

#001B55

Tritanopia (blue-blind)

#002733

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #101556;
/* rgb */ color: rgb(16, 21, 86);
/* oklch */ color: oklch(24.6% 0.115 271.1);

Tailwind

colors: {
  custom: {
    50: '#5c5286',
    500: '#101556',
    950: '#000000',
  },
}

SCSS

$custom: #101556;
$custom-light: #5c5286;
$custom-dark: #000000;

JSON

{
  "hex": "#101556",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 86
  },
  "hsl": {
    "h": 235.714,
    "s": 68.627,
    "l": 20
  },
  "oklch": {
    "l": 0.24592,
    "c": 0.11489,
    "h": 271.1
  },
  "luminance": 0.01318
}

Semantic roles & 50–950 ramp

primary

#101556

secondary

#8F8932

accent

#DF3CEB

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #101556

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

Preview Lab → · Contrast checker → · Palette generator →