#100F44#100F44

#100F44 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.4% C 0.096 H 275.5°. Best body text is #FFFFFF at 17.89:1 contrast (WCAG AA passes).

Color values

HEX	#100F44
RGB	rgb(16, 15, 68)
HSL	hsl(241, 64%, 16%)
HSV	hsv(241, 78%, 27%)
CMYK	cmyk(76.5%, 77.9%, 0%, 73.3%)
CIE-LAB	lab(7.85, 20.57, -33.08)
CIE-LCH	lch(7.85, 38.95, 301.87°)
OKLab	oklab(21.42% 0.0091 -0.0956)
OKLCH	oklch(21.42% 0.096 275.5)
XYZ	xyz(1.4276, 0.8690, 5.5602)
Luminance	0.0087 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100F44 #43440F

analogous

#0F2944 #100F44 #2B0F44

triadic

#100F44 #44100F #0F4410

tetradic

#100F44 #440F29 #43440F #0F442B

square

#100F44 #440F29 #43440F #0F442B

split-complementary

#100F44 #442B0F #29440F

monochromatic

#060619 #060619 #100F44 #1C1A76 #2825A8

Accessibility & contrast

On white

17.89

#100F44 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#100F44 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100F44

17.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100F44	#FFFFFF	#000000	##FFFFFF
##100F44	1.00	17.89	1.17	17.89
#FFFFFF	17.89	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A46

Deuteranopia (green-blind)

#001543

Tritanopia (blue-blind)

#001D28

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #100f44;
/* rgb */ color: rgb(16, 15, 68);
/* oklch */ color: oklch(21.4% 0.096 275.5);

Tailwind

colors: {
  custom: {
    50: '#574d79',
    500: '#100f44',
    950: '#000000',
  },
}

SCSS

$custom: #100f44;
$custom-light: #574d79;
$custom-dark: #000000;

JSON

{
  "hex": "#100f44",
  "rgb": {
    "r": 16,
    "g": 15,
    "b": 68
  },
  "hsl": {
    "h": 241.132,
    "s": 63.855,
    "l": 16.275
  },
  "oklch": {
    "l": 0.21424,
    "c": 0.096,
    "h": 275.5
  },
  "luminance": 0.00869
}

Semantic roles & 50–950 ramp

primary

#100F44

secondary

#7D7E30

accent

#E741E4

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040109

muted

#79777B

Preview Lab

Preview with #100F44

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

Preview Lab → · Contrast checker → · Palette generator →