#101C2F#101C2F

#101C2F is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.6% C 0.041 H 259.3°. Best body text is #FFFFFF at 17.08:1 contrast (WCAG AA passes).

Color values

HEX	#101C2F
RGB	rgb(16, 28, 47)
HSL	hsl(217, 49%, 12%)
HSV	hsv(217, 66%, 18%)
CMYK	cmyk(66%, 40.4%, 0%, 81.6%)
CIE-LAB	lab(10.15, 1.79, -14.29)
CIE-LCH	lch(10.15, 14.40, 277.16°)
OKLab	oklab(22.59% -0.0076 -0.0403)
OKLCH	oklch(22.59% 0.041 259.3)
XYZ	xyz(1.1419, 1.1458, 2.8498)
Luminance	0.0115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101C2F #2F2310

analogous

#102C2F #101C2F #14102F

triadic

#101C2F #2F101C #1C2F10

tetradic

#101C2F #2F102C #2F2310 #102F14

square

#101C2F #2F102C #2F2310 #102F14

split-complementary

#101C2F #2F1410 #2C2F10

monochromatic

#080E17 #080E17 #101C2F #20375D #2F528A

Accessibility & contrast

On white

17.08

#101C2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#101C2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C2F

17.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101C2F	#FFFFFF	#000000	##FFFFFF
##101C2F	1.00	17.08	1.23	17.08
#FFFFFF	17.08	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141D30

Deuteranopia (green-blind)

#111A2F

Tritanopia (blue-blind)

#022023

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #101c2f;
/* rgb */ color: rgb(16, 28, 47);
/* oklch */ color: oklch(22.6% 0.041 259.3);

Tailwind

colors: {
  custom: {
    50: '#515767',
    500: '#101c2f',
    950: '#000000',
  },
}

SCSS

$custom: #101c2f;
$custom-light: #515767;
$custom-dark: #000000;

JSON

{
  "hex": "#101c2f",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 47
  },
  "hsl": {
    "h": 216.774,
    "s": 49.206,
    "l": 12.353
  },
  "oklch": {
    "l": 0.22591,
    "c": 0.04103,
    "h": 259.3
  },
  "luminance": 0.01146
}

Semantic roles & 50–950 ramp

primary

#101C2F

secondary

#685333

accent

#A34FD9

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #101C2F

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

Preview Lab → · Contrast checker → · Palette generator →