#101F3C#101F3C

#101F3C is a very dark, muted blue. Relative luminance 0.014; OKLCH L 24.4% C 0.059 H 262.3°. Best body text is #FFFFFF at 16.37:1 contrast (WCAG AA passes).

Color values

HEX	#101F3C
RGB	rgb(16, 31, 60)
HSL	hsl(220, 58%, 15%)
HSV	hsv(220, 73%, 24%)
CMYK	cmyk(73.3%, 48.3%, 0%, 76.5%)
CIE-LAB	lab(12.07, 4.97, -20.59)
CIE-LCH	lch(12.07, 21.18, 283.58°)
OKLab	oklab(24.36% -0.008 -0.0587)
OKLCH	oklch(24.36% 0.059 262.3)
XYZ	xyz(1.5190, 1.4162, 4.4674)
Luminance	0.0142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101F3C #3C2D10

analogous

#10353C #101F3C #17103C

triadic

#101F3C #3C101F #1F3C10

tetradic

#101F3C #3C1035 #3C2D10 #103C17

square

#101F3C #3C1035 #3C2D10 #103C17

split-complementary

#101F3C #3C1710 #353C10

monochromatic

#060C18 #060C18 #101F3C #1D386C #2A519D

Accessibility & contrast

On white

16.37

#101F3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#101F3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F3C

16.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101F3C	#FFFFFF	#000000	##FFFFFF
##101F3C	1.00	16.37	1.28	16.37
#FFFFFF	16.37	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12223D

Deuteranopia (green-blind)

#0B1E3B

Tritanopia (blue-blind)

#00262A

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #101f3c;
/* rgb */ color: rgb(16, 31, 60);
/* oklch */ color: oklch(24.4% 0.059 262.3);

Tailwind

colors: {
  custom: {
    50: '#545a72',
    500: '#101f3c',
    950: '#000000',
  },
}

SCSS

$custom: #101f3c;
$custom-light: #545a72;
$custom-dark: #000000;

JSON

{
  "hex": "#101f3c",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 60
  },
  "hsl": {
    "h": 219.545,
    "s": 57.895,
    "l": 14.902
  },
  "oklch": {
    "l": 0.24355,
    "c": 0.05923,
    "h": 262.3
  },
  "luminance": 0.01416
}

Semantic roles & 50–950 ramp

primary

#101F3C

secondary

#765F32

accent

#AC47E1

background

#F5F5F6

surface

#E8E9EC

border

#C4C5C7

text

#030308

muted

#78787B

Preview Lab

Preview with #101F3C

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

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