#100F2F#100F2F

#100F2F is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.2% C 0.062 H 280.2°. Best body text is #FFFFFF at 18.56:1 contrast (WCAG AA passes).

Color values

HEX	#100F2F
RGB	rgb(16, 15, 47)
HSL	hsl(242, 52%, 12%)
HSV	hsv(242, 68%, 18%)
CMYK	cmyk(66%, 68.1%, 0%, 81.6%)
CIE-LAB	lab(5.93, 11.13, -20.99)
CIE-LCH	lch(5.93, 23.76, 297.94°)
OKLab	oklab(19.22% 0.011 -0.0611)
OKLCH	oklch(19.22% 0.062 280.2)
XYZ	xyz(0.8974, 0.6570, 2.7683)
Luminance	0.0066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.36

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100F2F #2E2F0F

analogous

#0F1E2F #100F2F #200F2F

triadic

#100F2F #2F100F #0F2F10

tetradic

#100F2F #2F0F1E #2E2F0F #0F2F20

square

#100F2F #2F0F1E #2E2F0F #0F2F20

split-complementary

#100F2F #2F200F #1E2F0F

monochromatic

#080717 #080717 #100F2F #201E5D #302D8C

Accessibility & contrast

On white

18.56

#100F2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#100F2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100F2F

18.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100F2F	#FFFFFF	#000000	##FFFFFF
##100F2F	1.00	18.56	1.13	18.56
#FFFFFF	18.56	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001430

Deuteranopia (green-blind)

#00122E

Tritanopia (blue-blind)

#03161D

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #100f2f;
/* rgb */ color: rgb(16, 15, 47);
/* oklch */ color: oklch(19.2% 0.062 280.2);

Tailwind

colors: {
  custom: {
    50: '#514d68',
    500: '#100f2f',
    950: '#000000',
  },
}

SCSS

$custom: #100f2f;
$custom-light: #514d68;
$custom-dark: #000000;

JSON

{
  "hex": "#100f2f",
  "rgb": {
    "r": 16,
    "g": 15,
    "b": 47
  },
  "hsl": {
    "h": 241.875,
    "s": 51.613,
    "l": 12.157
  },
  "oklch": {
    "l": 0.19215,
    "c": 0.06212,
    "h": 280.2
  },
  "luminance": 0.00657
}

Semantic roles & 50–950 ramp

primary

#100F2F

secondary

#676931

accent

#DB4DD7

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #100F2F

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

Preview Lab → · Contrast checker → · Palette generator →