#101553#101553

#101553 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.3% C 0.111 H 271.4°. Best body text is #FFFFFF at 16.74:1 contrast (WCAG AA passes).

Color values

HEX	#101553
RGB	rgb(16, 21, 83)
HSL	hsl(236, 68%, 19%)
HSV	hsv(236, 81%, 33%)
CMYK	cmyk(80.7%, 74.7%, 0%, 67.5%)
CIE-LAB	lab(11.07, 22.33, -38.20)
CIE-LCH	lch(11.07, 44.25, 300.32°)
OKLab	oklab(24.25% 0.0027 -0.1105)
OKLCH	oklch(24.25% 0.111 271.4)
XYZ	xyz(2.0427, 1.2708, 8.3196)
Luminance	0.0127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101553 #534E10

analogous

#103753 #101553 #2D1053

triadic

#101553 #531015 #155310

tetradic

#101553 #531037 #534E10 #10532D

square

#101553 #531037 #534E10 #10532D

split-complementary

#101553 #532D10 #375310

monochromatic

#05061A #060820 #101553 #1A2286 #242FBA

Accessibility & contrast

On white

16.74

#101553 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#101553 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101553

16.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101553	#FFFFFF	#000000	##FFFFFF
##101553	1.00	16.74	1.25	16.74
#FFFFFF	16.74	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002155

Deuteranopia (green-blind)

#001A52

Tritanopia (blue-blind)

#002632

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #101553;
/* rgb */ color: rgb(16, 21, 83);
/* oklch */ color: oklch(24.3% 0.111 271.4);

Tailwind

colors: {
  custom: {
    50: '#5b5284',
    500: '#101553',
    950: '#000000',
  },
}

SCSS

$custom: #101553;
$custom-light: #5b5284;
$custom-dark: #000000;

JSON

{
  "hex": "#101553",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 83
  },
  "hsl": {
    "h": 235.522,
    "s": 67.677,
    "l": 19.412
  },
  "oklch": {
    "l": 0.24252,
    "c": 0.11053,
    "h": 271.4
  },
  "luminance": 0.01271
}

Semantic roles & 50–950 ramp

primary

#101553

secondary

#8D8632

accent

#DE3DEB

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04020B

muted

#79787C

Preview Lab

Preview with #101553

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

Preview Lab → · Contrast checker → · Palette generator →