#101554#101554

#101554 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.4% C 0.112 H 271.3°. Best body text is #FFFFFF at 16.70:1 contrast (WCAG AA passes).

Color values

HEX	#101554
RGB	rgb(16, 21, 84)
HSL	hsl(236, 68%, 20%)
HSV	hsv(236, 81%, 33%)
CMYK	cmyk(81%, 75%, 0%, 67.1%)
CIE-LAB	lab(11.18, 22.73, -38.70)
CIE-LCH	lch(11.18, 44.88, 300.43°)
OKLab	oklab(24.36% 0.0025 -0.112)
OKLCH	oklch(24.36% 0.112 271.3)
XYZ	xyz(2.0815, 1.2864, 8.5244)
Luminance	0.0129 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101554 #544F10

analogous

#103754 #101554 #2D1054

triadic

#101554 #541015 #155410

tetradic

#101554 #541037 #544F10 #10542D

square

#101554 #541037 #544F10 #10542D

split-complementary

#101554 #542D10 #375410

monochromatic

#05061A #060821 #101554 #1A2287 #242FBB

Accessibility & contrast

On white

16.70

#101554 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#101554 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101554

16.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101554	#FFFFFF	#000000	##FFFFFF
##101554	1.00	16.70	1.26	16.70
#FFFFFF	16.70	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002156

Deuteranopia (green-blind)

#001B53

Tritanopia (blue-blind)

#002632

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #101554;
/* rgb */ color: rgb(16, 21, 84);
/* oklch */ color: oklch(24.4% 0.112 271.3);

Tailwind

colors: {
  custom: {
    50: '#5b5285',
    500: '#101554',
    950: '#000000',
  },
}

SCSS

$custom: #101554;
$custom-light: #5b5285;
$custom-dark: #000000;

JSON

{
  "hex": "#101554",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 84
  },
  "hsl": {
    "h": 235.588,
    "s": 68,
    "l": 19.608
  },
  "oklch": {
    "l": 0.24364,
    "c": 0.112,
    "h": 271.3
  },
  "luminance": 0.01287
}

Semantic roles & 50–950 ramp

primary

#101554

secondary

#8E8732

accent

#DE3DEB

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04020B

muted

#79787C

Preview Lab

Preview with #101554

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

Preview Lab → · Contrast checker → · Palette generator →