#100B48#100B48

#100B48 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 21.2% C 0.107 H 275.9°. Best body text is #FFFFFF at 18.05:1 contrast (WCAG AA passes).

Color values

HEX	#100B48
RGB	rgb(16, 11, 72)
HSL	hsl(245, 73%, 16%)
HSV	hsv(245, 85%, 28%)
CMYK	cmyk(77.8%, 84.7%, 0%, 71.8%)
CIE-LAB	lab(7.38, 24.71, -36.66)
CIE-LCH	lch(7.38, 44.21, 303.98°)
OKLab	oklab(21.22% 0.011 -0.1061)
OKLCH	oklch(21.22% 0.107 275.9)
XYZ	xyz(1.5027, 0.8172, 6.2082)
Luminance	0.0082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100B48 #43480B

analogous

#0B2548 #100B48 #2F0B48

triadic

#100B48 #48100B #0B4810

tetradic

#100B48 #480B25 #43480B #0B482F

square

#100B48 #480B25 #43480B #0B482F

split-complementary

#100B48 #482F0B #25480B

monochromatic

#06041B #06041B #100B48 #1C137D #281BB2

Accessibility & contrast

On white

18.05

#100B48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#100B48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100B48

18.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100B48	#FFFFFF	#000000	##FFFFFF
##100B48	1.00	18.05	1.16	18.05
#FFFFFF	18.05	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00194A

Deuteranopia (green-blind)

#001447

Tritanopia (blue-blind)

#001D29

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #100b48;
/* rgb */ color: rgb(16, 11, 72);
/* oklch */ color: oklch(21.2% 0.107 275.9);

Tailwind

colors: {
  custom: {
    50: '#594b7c',
    500: '#100b48',
    950: '#000000',
  },
}

SCSS

$custom: #100b48;
$custom-light: #594b7c;
$custom-dark: #000000;

JSON

{
  "hex": "#100b48",
  "rgb": {
    "r": 16,
    "g": 11,
    "b": 72
  },
  "hsl": {
    "h": 244.918,
    "s": 73.494,
    "l": 16.275
  },
  "oklch": {
    "l": 0.21221,
    "c": 0.10664,
    "h": 275.9
  },
  "luminance": 0.00817
}

Semantic roles & 50–950 ramp

primary

#100B48

secondary

#7D842A

accent

#F038E1

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#040109

muted

#79777B

Preview Lab

Preview with #100B48

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

Preview Lab → · Contrast checker → · Palette generator →