#101533#101533

#101533 is a very dark, muted blue. Relative luminance 0.009; OKLCH L 21.0% C 0.059 H 273.2°. Best body text is #FFFFFF at 17.84:1 contrast (WCAG AA passes).

Color values

HEX	#101533
RGB	rgb(16, 21, 51)
HSL	hsl(231, 52%, 13%)
HSV	hsv(231, 69%, 20%)
CMYK	cmyk(68.6%, 58.8%, 0%, 80%)
CIE-LAB	lab(8.00, 8.94, -20.64)
CIE-LCH	lch(8.00, 22.49, 293.43°)
OKLab	oklab(21.03% 0.0033 -0.059)
OKLCH	oklch(21.03% 0.059 273.2)
XYZ	xyz(1.0792, 0.8854, 3.2454)
Luminance	0.0089 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.21

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101533 #332E10

analogous

#102633 #101533 #1C1033

triadic

#101533 #331015 #153310

tetradic

#101533 #331026 #332E10 #10331C

square

#101533 #331026 #332E10 #10331C

split-complementary

#101533 #331C10 #263310

monochromatic

#070A17 #070A17 #101533 #1F2862 #2D3B90

Accessibility & contrast

On white

17.84

#101533 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#101533 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101533

17.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101533	#FFFFFF	#000000	##FFFFFF
##101533	1.00	17.84	1.18	17.84
#FFFFFF	17.84	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#061934

Deuteranopia (green-blind)

#031632

Tritanopia (blue-blind)

#001C21

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #101533;
/* rgb */ color: rgb(16, 21, 51);
/* oklch */ color: oklch(21.0% 0.059 273.2);

Tailwind

colors: {
  custom: {
    50: '#52516b',
    500: '#101533',
    950: '#000000',
  },
}

SCSS

$custom: #101533;
$custom-light: #52516b;
$custom-dark: #000000;

JSON

{
  "hex": "#101533",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 51
  },
  "hsl": {
    "h": 231.429,
    "s": 52.239,
    "l": 13.137
  },
  "oklch": {
    "l": 0.21027,
    "c": 0.05905,
    "h": 273.2
  },
  "luminance": 0.00886
}

Semantic roles & 50–950 ramp

primary

#101533

secondary

#6C6432

accent

#C74CDC

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #101533

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

Preview Lab → · Contrast checker → · Palette generator →