#101A3A#101A3A

#101A3A is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 22.9% C 0.063 H 268.1°. Best body text is #FFFFFF at 17.06:1 contrast (WCAG AA passes).

Color values

HEX	#101A3A
RGB	rgb(16, 26, 58)
HSL	hsl(226, 57%, 15%)
HSV	hsv(226, 72%, 23%)
CMYK	cmyk(72.4%, 55.2%, 0%, 77.3%)
CIE-LAB	lab(10.22, 7.98, -22.13)
CIE-LCH	lch(10.22, 23.52, 289.84°)
OKLab	oklab(22.89% -0.0021 -0.0633)
OKLCH	oklch(22.89% 0.063 268.1)
XYZ	xyz(1.3465, 1.1543, 4.1540)
Luminance	0.0115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A3A #3A3010

analogous

#102F3A #101A3A #1B103A

triadic

#101A3A #3A101A #1A3A10

tetradic

#101A3A #3A102F #3A3010 #103A1B

square

#101A3A #3A102F #3A3010 #103A1B

split-complementary

#101A3A #3A1B10 #2F3A10

monochromatic

#070B18 #070B18 #101A3A #1D306A #2A459A

Accessibility & contrast

On white

17.06

#101A3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#101A3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A3A

17.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A3A	#FFFFFF	#000000	##FFFFFF
##101A3A	1.00	17.06	1.23	17.06
#FFFFFF	17.06	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A1E3B

Deuteranopia (green-blind)

#041A39

Tritanopia (blue-blind)

#002127

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #101a3a;
/* rgb */ color: rgb(16, 26, 58);
/* oklch */ color: oklch(22.9% 0.063 268.1);

Tailwind

colors: {
  custom: {
    50: '#535670',
    500: '#101a3a',
    950: '#000000',
  },
}

SCSS

$custom: #101a3a;
$custom-light: #535670;
$custom-dark: #000000;

JSON

{
  "hex": "#101a3a",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 58
  },
  "hsl": {
    "h": 225.714,
    "s": 56.757,
    "l": 14.51
  },
  "oklch": {
    "l": 0.22888,
    "c": 0.06332,
    "h": 268.1
  },
  "luminance": 0.01154
}

Semantic roles & 50–950 ramp

primary

#101A3A

secondary

#746432

accent

#BC48E0

background

#F4F4F6

surface

#E8E8EC

border

#C4C4C7

text

#030307

muted

#78787A

Preview Lab

Preview with #101A3A

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

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