#101B2D#101B2D

#101B2D is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.2% C 0.039 H 259.9°. Best body text is #FFFFFF at 17.26:1 contrast (WCAG AA passes).

Color values

HEX	#101B2D
RGB	rgb(16, 27, 45)
HSL	hsl(217, 48%, 12%)
HSV	hsv(217, 64%, 18%)
CMYK	cmyk(64.4%, 40%, 0%, 82.4%)
CIE-LAB	lab(9.67, 1.74, -13.59)
CIE-LCH	lch(9.67, 13.70, 277.30°)
OKLab	oklab(22.17% -0.0068 -0.0383)
OKLCH	oklch(22.17% 0.039 259.9)
XYZ	xyz(1.0791, 1.0834, 2.6344)
Luminance	0.0108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B2D #2D2210

analogous

#102A2D #101B2D #14102D

triadic

#101B2D #2D101B #1B2D10

tetradic

#101B2D #2D102A #2D2210 #102D14

square

#101B2D #2D102A #2D2210 #102D14

split-complementary

#101B2D #2D1410 #2A2D10

monochromatic

#080E17 #080E17 #101B2D #20365A #305187

Accessibility & contrast

On white

17.26

#101B2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#101B2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B2D

17.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B2D	#FFFFFF	#000000	##FFFFFF
##101B2D	1.00	17.26	1.22	17.26
#FFFFFF	17.26	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141C2E

Deuteranopia (green-blind)

#101A2D

Tritanopia (blue-blind)

#031F21

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #101b2d;
/* rgb */ color: rgb(16, 27, 45);
/* oklch */ color: oklch(22.2% 0.039 259.9);

Tailwind

colors: {
  custom: {
    50: '#505766',
    500: '#101b2d',
    950: '#000000',
  },
}

SCSS

$custom: #101b2d;
$custom-light: #505766;
$custom-dark: #000000;

JSON

{
  "hex": "#101b2d",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 45
  },
  "hsl": {
    "h": 217.241,
    "s": 47.541,
    "l": 11.961
  },
  "oklch": {
    "l": 0.22174,
    "c": 0.03888,
    "h": 259.9
  },
  "luminance": 0.01083
}

Semantic roles & 50–950 ramp

primary

#101B2D

secondary

#665333

accent

#A451D7

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020305

muted

#78787A

Preview Lab

Preview with #101B2D

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

Preview Lab → · Contrast checker → · Palette generator →