#101033#101033

#101033 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.8% C 0.067 H 278.3°. Best body text is #FFFFFF at 18.36:1 contrast (WCAG AA passes).

Color values

HEX	#101033
RGB	rgb(16, 16, 51)
HSL	hsl(240, 52%, 13%)
HSV	hsv(240, 69%, 20%)
CMYK	cmyk(68.6%, 68.6%, 0%, 80%)
CIE-LAB	lab(6.50, 12.44, -23.04)
CIE-LCH	lch(6.50, 26.18, 298.37°)
OKLab	oklab(19.83% 0.0097 -0.0666)
OKLCH	oklch(19.83% 0.067 278.3)
XYZ	xyz(0.9963, 0.7197, 3.2177)
Luminance	0.0072 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.55

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101033 #333310

analogous

#102133 #101033 #211033

triadic

#101033 #331010 #103310

tetradic

#101033 #331021 #333310 #103321

square

#101033 #331021 #333310 #103321

split-complementary

#101033 #332110 #213310

monochromatic

#070717 #070717 #101033 #1F1F62 #2D2D90

Accessibility & contrast

On white

18.36

#101033 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#101033 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101033

18.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101033	#FFFFFF	#000000	##FFFFFF
##101033	1.00	18.36	1.14	18.36
#FFFFFF	18.36	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001634

Deuteranopia (green-blind)

#001332

Tritanopia (blue-blind)

#01181F

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #101033;
/* rgb */ color: rgb(16, 16, 51);
/* oklch */ color: oklch(19.8% 0.067 278.3);

Tailwind

colors: {
  custom: {
    50: '#524e6b',
    500: '#101033',
    950: '#000000',
  },
}

SCSS

$custom: #101033;
$custom-light: #524e6b;
$custom-dark: #000000;

JSON

{
  "hex": "#101033",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 51
  },
  "hsl": {
    "h": 240,
    "s": 52.239,
    "l": 13.137
  },
  "oklch": {
    "l": 0.19827,
    "c": 0.06734,
    "h": 278.3
  },
  "luminance": 0.0072
}

Semantic roles & 50–950 ramp

primary

#101033

secondary

#6C6C32

accent

#DC4CDC

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #101033

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

Preview Lab → · Contrast checker → · Palette generator →