#100F72#100F72

#100F72 is a dark, vivid blue. Relative luminance 0.017; OKLCH L 27.2% C 0.158 H 269.6°. Best body text is #FFFFFF at 15.75:1 contrast (WCAG AA passes).

Color values

HEX	#100F72
RGB	rgb(16, 15, 114)
HSL	hsl(241, 77%, 25%)
HSV	hsv(241, 87%, 45%)
CMYK	cmyk(86%, 86.8%, 0%, 55.3%)
CIE-LAB	lab(13.63, 37.37, -54.58)
CIE-LCH	lch(13.63, 66.15, 304.40°)
OKLab	oklab(27.18% -0.0011 -0.158)
OKLCH	oklch(27.18% 0.158 269.6)
XYZ	xyz(3.4207, 1.6663, 16.0577)
Luminance	0.0167 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100F72 #71720F

analogous

#0F3F72 #100F72 #410F72

triadic

#100F72 #72100F #0F7210

tetradic

#100F72 #720F3F #71720F #0F7241

square

#100F72 #720F3F #71720F #0F7241

split-complementary

#100F72 #72410F #3F720F

monochromatic

#04041B #08083C #100F72 #1816A8 #1F1DDE

Accessibility & contrast

On white

15.75

#100F72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#100F72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100F72

15.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100F72	#FFFFFF	#000000	##FFFFFF
##100F72	1.00	15.75	1.33	15.75
#FFFFFF	15.75	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002875

Deuteranopia (green-blind)

#001E70

Tritanopia (blue-blind)

#002F42

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #100f72;
/* rgb */ color: rgb(16, 15, 114);
/* oklch */ color: oklch(27.2% 0.158 269.6);

Tailwind

colors: {
  custom: {
    50: '#65519c',
    500: '#100f72',
    950: '#000000',
  },
}

SCSS

$custom: #100f72;
$custom-light: #65519c;
$custom-dark: #000000;

JSON

{
  "hex": "#100f72",
  "rgb": {
    "r": 16,
    "g": 15,
    "b": 114
  },
  "hsl": {
    "h": 240.606,
    "s": 76.744,
    "l": 25.294
  },
  "oklch": {
    "l": 0.27178,
    "c": 0.15801,
    "h": 269.6
  },
  "luminance": 0.01667
}

Semantic roles & 50–950 ramp

primary

#100F72

secondary

#A9AA33

accent

#F335F1

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #100F72

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

Preview Lab → · Contrast checker → · Palette generator →