#101F38#101F38

#101F38 is a very dark, muted blue. Relative luminance 0.014; OKLCH L 24.1% C 0.052 H 260.1°. Best body text is #FFFFFF at 16.47:1 contrast (WCAG AA passes).

Color values

HEX	#101F38
RGB	rgb(16, 31, 56)
HSL	hsl(218, 56%, 14%)
HSV	hsv(218, 71%, 22%)
CMYK	cmyk(71.4%, 44.6%, 0%, 78%)
CIE-LAB	lab(11.79, 3.26, -18.18)
CIE-LCH	lch(11.79, 18.47, 280.18°)
OKLab	oklab(24.06% -0.009 -0.0516)
OKLCH	oklch(24.06% 0.052 260.1)
XYZ	xyz(1.4172, 1.3755, 3.9314)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101F38 #382910

analogous

#103338 #101F38 #151038

triadic

#101F38 #38101F #1F3810

tetradic

#101F38 #381033 #382910 #103815

square

#101F38 #381033 #382910 #103815

split-complementary

#101F38 #381510 #333810

monochromatic

#070D18 #070D18 #101F38 #1E3968 #2B5497

Accessibility & contrast

On white

16.47

#101F38 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#101F38 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F38

16.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101F38	#FFFFFF	#000000	##FFFFFF
##101F38	1.00	16.47	1.28	16.47
#FFFFFF	16.47	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#142139

Deuteranopia (green-blind)

#0F1D37

Tritanopia (blue-blind)

#002528

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #101f38;
/* rgb */ color: rgb(16, 31, 56);
/* oklch */ color: oklch(24.1% 0.052 260.1);

Tailwind

colors: {
  custom: {
    50: '#535a6e',
    500: '#101f38',
    950: '#000000',
  },
}

SCSS

$custom: #101f38;
$custom-light: #535a6e;
$custom-dark: #000000;

JSON

{
  "hex": "#101f38",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 56
  },
  "hsl": {
    "h": 217.5,
    "s": 55.556,
    "l": 14.118
  },
  "oklch": {
    "l": 0.24056,
    "c": 0.05241,
    "h": 260.1
  },
  "luminance": 0.01376
}

Semantic roles & 50–950 ramp

primary

#101F38

secondary

#725A32

accent

#A749DF

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020307

muted

#78787A

Preview Lab

Preview with #101F38

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

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