#101D38#101D38

#101D38 is a very dark, muted blue. Relative luminance 0.013; OKLCH L 23.5% C 0.055 H 263.4°. Best body text is #FFFFFF at 16.74:1 contrast (WCAG AA passes).

Color values

HEX	#101D38
RGB	rgb(16, 29, 56)
HSL	hsl(221, 56%, 14%)
HSV	hsv(221, 71%, 22%)
CMYK	cmyk(71.4%, 48.2%, 0%, 78%)
CIE-LAB	lab(11.09, 4.80, -19.29)
CIE-LCH	lch(11.09, 19.88, 283.96°)
OKLab	oklab(23.52% -0.0064 -0.0549)
OKLCH	oklch(23.52% 0.055 263.4)
XYZ	xyz(1.3666, 1.2743, 3.9146)
Luminance	0.0127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101D38 #382B10

analogous

#103138 #101D38 #171038

triadic

#101D38 #38101D #1D3810

tetradic

#101D38 #381031 #382B10 #103817

square

#101D38 #381031 #382B10 #103817

split-complementary

#101D38 #381710 #313810

monochromatic

#070C18 #070C18 #101D38 #1E3668 #2B4E97

Accessibility & contrast

On white

16.74

#101D38 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#101D38 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101D38

16.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101D38	#FFFFFF	#000000	##FFFFFF
##101D38	1.00	16.74	1.25	16.74
#FFFFFF	16.74	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#112039

Deuteranopia (green-blind)

#0B1C37

Tritanopia (blue-blind)

#002327

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #101d38;
/* rgb */ color: rgb(16, 29, 56);
/* oklch */ color: oklch(23.5% 0.055 263.4);

Tailwind

colors: {
  custom: {
    50: '#53586f',
    500: '#101d38',
    950: '#000000',
  },
}

SCSS

$custom: #101d38;
$custom-light: #53586f;
$custom-dark: #000000;

JSON

{
  "hex": "#101d38",
  "rgb": {
    "r": 16,
    "g": 29,
    "b": 56
  },
  "hsl": {
    "h": 220.5,
    "s": 55.556,
    "l": 14.118
  },
  "oklch": {
    "l": 0.23515,
    "c": 0.05528,
    "h": 263.4
  },
  "luminance": 0.01274
}

Semantic roles & 50–950 ramp

primary

#101D38

secondary

#725D32

accent

#AE49DF

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020307

muted

#78787A

Preview Lab

Preview with #101D38

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

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