#100D38#100D38

#100D38 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.7% C 0.080 H 279.2°. Best body text is #FFFFFF at 18.47:1 contrast (WCAG AA passes).

Color values

HEX	#100D38
RGB	rgb(16, 13, 56)
HSL	hsl(244, 62%, 14%)
HSV	hsv(244, 77%, 22%)
CMYK	cmyk(71.4%, 76.8%, 0%, 78%)
CIE-LAB	lab(6.17, 16.52, -27.22)
CIE-LCH	lch(6.17, 31.84, 301.26°)
OKLab	oklab(19.7% 0.0128 -0.0792)
OKLCH	oklch(19.7% 0.08 279.2)
XYZ	xyz(1.0712, 0.6835, 3.8161)
Luminance	0.0068 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100D38 #35380D

analogous

#0D1F38 #100D38 #250D38

triadic

#100D38 #38100D #0D3810

tetradic

#100D38 #380D1F #35380D #0D3825

square

#100D38 #380D1F #35380D #0D3825

split-complementary

#100D38 #38250D #1F380D

monochromatic

#070619 #070619 #100D38 #1E196A #2C249B

Accessibility & contrast

On white

18.47

#100D38 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#100D38 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100D38

18.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100D38	#FFFFFF	#000000	##FFFFFF
##100D38	1.00	18.47	1.14	18.47
#FFFFFF	18.47	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001539

Deuteranopia (green-blind)

#001237

Tritanopia (blue-blind)

#001821

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #100d38;
/* rgb */ color: rgb(16, 13, 56);
/* oklch */ color: oklch(19.7% 0.080 279.2);

Tailwind

colors: {
  custom: {
    50: '#544c6f',
    500: '#100d38',
    950: '#000000',
  },
}

SCSS

$custom: #100d38;
$custom-light: #544c6f;
$custom-dark: #000000;

JSON

{
  "hex": "#100d38",
  "rgb": {
    "r": 16,
    "g": 13,
    "b": 56
  },
  "hsl": {
    "h": 244.186,
    "s": 62.319,
    "l": 13.529
  },
  "oklch": {
    "l": 0.197,
    "c": 0.08024,
    "h": 279.2
  },
  "luminance": 0.00684
}

Semantic roles & 50–950 ramp

primary

#100D38

secondary

#6F732D

accent

#E542DA

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030107

muted

#78777A

Preview Lab

Preview with #100D38

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

Preview Lab → · Contrast checker → · Palette generator →