#101A2F#101A2F

#101A2F is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.0% C 0.044 H 263.9°. Best body text is #FFFFFF at 17.34:1 contrast (WCAG AA passes).

Color values

HEX	#101A2F
RGB	rgb(16, 26, 47)
HSL	hsl(221, 49%, 12%)
HSV	hsv(221, 66%, 18%)
CMYK	cmyk(66%, 44.7%, 0%, 81.6%)
CIE-LAB	lab(9.43, 3.33, -15.42)
CIE-LCH	lch(9.43, 15.78, 282.19°)
OKLab	oklab(22.03% -0.0047 -0.0436)
OKLCH	oklch(22.03% 0.044 263.9)
XYZ	xyz(1.0960, 1.0541, 2.8345)
Luminance	0.0105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A2F #2F2510

analogous

#102A2F #101A2F #16102F

triadic

#101A2F #2F101A #1A2F10

tetradic

#101A2F #2F102A #2F2510 #102F16

square

#101A2F #2F102A #2F2510 #102F16

split-complementary

#101A2F #2F1610 #2A2F10

monochromatic

#080D17 #080D17 #101A2F #20335D #2F4D8A

Accessibility & contrast

On white

17.34

#101A2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#101A2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A2F

17.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A2F	#FFFFFF	#000000	##FFFFFF
##101A2F	1.00	17.34	1.21	17.34
#FFFFFF	17.34	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#121C30

Deuteranopia (green-blind)

#0E192F

Tritanopia (blue-blind)

#021F22

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #101a2f;
/* rgb */ color: rgb(16, 26, 47);
/* oklch */ color: oklch(22.0% 0.044 263.9);

Tailwind

colors: {
  custom: {
    50: '#515667',
    500: '#101a2f',
    950: '#000000',
  },
}

SCSS

$custom: #101a2f;
$custom-light: #515667;
$custom-dark: #000000;

JSON

{
  "hex": "#101a2f",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 47
  },
  "hsl": {
    "h": 220.645,
    "s": 49.206,
    "l": 12.353
  },
  "oklch": {
    "l": 0.22034,
    "c": 0.04387,
    "h": 263.9
  },
  "luminance": 0.01054
}

Semantic roles & 50–950 ramp

primary

#101A2F

secondary

#685733

accent

#AC4FD9

background

#F4F5F6

surface

#E7E8EB

border

#C3C4C6

text

#020306

muted

#78787A

Preview Lab

Preview with #101A2F

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

Preview Lab → · Contrast checker → · Palette generator →