#101A2D#101A2D

#101A2D is a very dark, muted blue. Relative luminance 0.010; OKLCH L 21.9% C 0.040 H 262.4°. Best body text is #FFFFFF at 17.39:1 contrast (WCAG AA passes).

Color values

HEX	#101A2D
RGB	rgb(16, 26, 45)
HSL	hsl(219, 48%, 12%)
HSV	hsv(219, 64%, 18%)
CMYK	cmyk(64.4%, 42.2%, 0%, 82.4%)
CIE-LAB	lab(9.31, 2.51, -14.16)
CIE-LCH	lch(9.31, 14.38, 280.06°)
OKLab	oklab(21.89% -0.0053 -0.0399)
OKLCH	oklch(21.89% 0.04 262.4)
XYZ	xyz(1.0566, 1.0383, 2.6269)
Luminance	0.0104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A2D #2D2310

analogous

#10292D #101A2D #15102D

triadic

#101A2D #2D101A #1A2D10

tetradic

#101A2D #2D1029 #2D2310 #102D15

square

#101A2D #2D1029 #2D2310 #102D15

split-complementary

#101A2D #2D1510 #292D10

monochromatic

#080D17 #080D17 #101A2D #20345A #304E87

Accessibility & contrast

On white

17.39

#101A2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#101A2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A2D

17.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A2D	#FFFFFF	#000000	##FFFFFF
##101A2D	1.00	17.39	1.21	17.39
#FFFFFF	17.39	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131C2E

Deuteranopia (green-blind)

#0F192D

Tritanopia (blue-blind)

#031E21

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #101a2d;
/* rgb */ color: rgb(16, 26, 45);
/* oklch */ color: oklch(21.9% 0.040 262.4);

Tailwind

colors: {
  custom: {
    50: '#505666',
    500: '#101a2d',
    950: '#000000',
  },
}

SCSS

$custom: #101a2d;
$custom-light: #505666;
$custom-dark: #000000;

JSON

{
  "hex": "#101a2d",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 45
  },
  "hsl": {
    "h": 219.31,
    "s": 47.541,
    "l": 11.961
  },
  "oklch": {
    "l": 0.21893,
    "c": 0.04028,
    "h": 262.4
  },
  "luminance": 0.01038
}

Semantic roles & 50–950 ramp

primary

#101A2D

secondary

#665433

accent

#A951D7

background

#F4F5F6

surface

#E7E8EB

border

#C3C4C6

text

#020305

muted

#78787A

Preview Lab

Preview with #101A2D

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

Preview Lab → · Contrast checker → · Palette generator →