#100F56#100F56

#100F56 is a very dark, vivid blue. Relative luminance 0.011; OKLCH L 23.6% C 0.122 H 272.6°. Best body text is #FFFFFF at 17.15:1 contrast (WCAG AA passes).

Color values

HEX	#100F56
RGB	rgb(16, 15, 86)
HSL	hsl(241, 70%, 20%)
HSV	hsv(241, 83%, 34%)
CMYK	cmyk(81.4%, 82.6%, 0%, 66.3%)
CIE-LAB	lab(9.98, 27.50, -42.04)
CIE-LCH	lch(9.98, 50.24, 303.20°)
OKLab	oklab(23.58% 0.0055 -0.1217)
OKLCH	oklch(23.58% 0.122 272.6)
XYZ	xyz(2.0637, 1.1235, 8.9104)
Luminance	0.0112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100F56 #55560F

analogous

#0F3256 #100F56 #340F56

triadic

#100F56 #56100F #0F5610

tetradic

#100F56 #560F32 #55560F #0F5634

square

#100F56 #560F32 #55560F #0F5634

split-complementary

#100F56 #56340F #32560F

monochromatic

#05051A #060622 #100F56 #1A188A #2321BE

Accessibility & contrast

On white

17.15

#100F56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#100F56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100F56

17.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100F56	#FFFFFF	#000000	##FFFFFF
##100F56	1.00	17.15	1.22	17.15
#FFFFFF	17.15	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F58

Deuteranopia (green-blind)

#001855

Tritanopia (blue-blind)

#002432

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #100f56;
/* rgb */ color: rgb(16, 15, 86);
/* oklch */ color: oklch(23.6% 0.122 272.6);

Tailwind

colors: {
  custom: {
    50: '#5c4e87',
    500: '#100f56',
    950: '#000000',
  },
}

SCSS

$custom: #100f56;
$custom-light: #5c4e87;
$custom-dark: #000000;

JSON

{
  "hex": "#100f56",
  "rgb": {
    "r": 16,
    "g": 15,
    "b": 86
  },
  "hsl": {
    "h": 240.845,
    "s": 70.297,
    "l": 19.804
  },
  "oklch": {
    "l": 0.23578,
    "c": 0.12178,
    "h": 272.6
  },
  "luminance": 0.01124
}

Semantic roles & 50–950 ramp

primary

#100F56

secondary

#8F9031

accent

#ED3BEB

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #100F56

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

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