#100F2E#100F2E

#100F2E is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.1% C 0.060 H 280.5°. Best body text is #FFFFFF at 18.59:1 contrast (WCAG AA passes).

Color values

HEX	#100F2E
RGB	rgb(16, 15, 46)
HSL	hsl(242, 51%, 12%)
HSV	hsv(242, 67%, 18%)
CMYK	cmyk(65.2%, 67.4%, 0%, 82%)
CIE-LAB	lab(5.86, 10.66, -20.36)
CIE-LCH	lch(5.86, 22.98, 297.63°)
OKLab	oklab(19.12% 0.011 -0.0594)
OKLCH	oklch(19.12% 0.06 280.5)
XYZ	xyz(0.8775, 0.6490, 2.6633)
Luminance	0.0065 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.66

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100F2E #2D2E0F

analogous

#0F1E2E #100F2E #200F2E

triadic

#100F2E #2E100F #0F2E10

tetradic

#100F2E #2E0F1E #2D2E0F #0F2E20

square

#100F2E #2E0F1E #2D2E0F #0F2E20

split-complementary

#100F2E #2E200F #1E2E0F

monochromatic

#080817 #080817 #100F2E #201E5C #302D8A

Accessibility & contrast

On white

18.59

#100F2E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#100F2E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100F2E

18.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100F2E	#FFFFFF	#000000	##FFFFFF
##100F2E	1.00	18.59	1.13	18.59
#FFFFFF	18.59	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01142F

Deuteranopia (green-blind)

#00122D

Tritanopia (blue-blind)

#04161C

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #100f2e;
/* rgb */ color: rgb(16, 15, 46);
/* oklch */ color: oklch(19.1% 0.060 280.5);

Tailwind

colors: {
  custom: {
    50: '#514d67',
    500: '#100f2e',
    950: '#000000',
  },
}

SCSS

$custom: #100f2e;
$custom-light: #514d67;
$custom-dark: #000000;

JSON

{
  "hex": "#100f2e",
  "rgb": {
    "r": 16,
    "g": 15,
    "b": 46
  },
  "hsl": {
    "h": 241.935,
    "s": 50.82,
    "l": 11.961
  },
  "oklch": {
    "l": 0.19121,
    "c": 0.06038,
    "h": 280.5
  },
  "luminance": 0.00649
}

Semantic roles & 50–950 ramp

primary

#100F2E

secondary

#666831

accent

#DA4DD6

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #100F2E

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

Preview Lab → · Contrast checker → · Palette generator →