#100A2F#100A2F

#100A2F is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.1% C 0.070 H 284.3°. Best body text is #FFFFFF at 18.98:1 contrast (WCAG AA passes).

Color values

HEX	#100A2F
RGB	rgb(16, 10, 47)
HSL	hsl(250, 65%, 11%)
HSV	hsv(250, 79%, 18%)
CMYK	cmyk(66%, 78.7%, 0%, 81.6%)
CIE-LAB	lab(4.81, 13.48, -22.78)
CIE-LCH	lch(4.81, 26.48, 300.62°)
OKLab	oklab(18.14% 0.0174 -0.0682)
OKLCH	oklch(18.14% 0.07 284.3)
XYZ	xyz(0.8352, 0.5324, 2.7475)
Luminance	0.0053 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100A2F #292F0A

analogous

#0A162F #100A2F #220A2F

triadic

#100A2F #2F100A #0A2F10

tetradic

#100A2F #2F0A16 #292F0A #0A2F22

square

#100A2F #2F0A16 #292F0A #0A2F22

split-complementary

#100A2F #2F220A #162F0A

monochromatic

#090519 #090519 #100A2F #211561 #321F94

Accessibility & contrast

On white

18.98

#100A2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#100A2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100A2F

18.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100A2F	#FFFFFF	#000000	##FFFFFF
##100A2F	1.00	18.98	1.11	18.98
#FFFFFF	18.98	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001130

Deuteranopia (green-blind)

#000F2E

Tritanopia (blue-blind)

#04131B

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #100a2f;
/* rgb */ color: rgb(16, 10, 47);
/* oklch */ color: oklch(18.1% 0.070 284.3);

Tailwind

colors: {
  custom: {
    50: '#514b68',
    500: '#100a2f',
    950: '#000000',
  },
}

SCSS

$custom: #100a2f;
$custom-light: #514b68;
$custom-dark: #000000;

JSON

{
  "hex": "#100a2f",
  "rgb": {
    "r": 16,
    "g": 10,
    "b": 47
  },
  "hsl": {
    "h": 249.73,
    "s": 64.912,
    "l": 11.176
  },
  "oklch": {
    "l": 0.18136,
    "c": 0.07037,
    "h": 284.3
  },
  "luminance": 0.00532
}

Semantic roles & 50–950 ramp

primary

#100A2F

secondary

#616C29

accent

#E840CD

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #100A2F

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

Preview Lab → · Contrast checker → · Palette generator →