#101B48#101B48

#101B48 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.4% C 0.085 H 268.8°. Best body text is #FFFFFF at 16.50:1 contrast (WCAG AA passes).

Color values

HEX	#101B48
RGB	rgb(16, 27, 72)
HSL	hsl(228, 64%, 17%)
HSV	hsv(228, 78%, 28%)
CMYK	cmyk(77.8%, 62.5%, 0%, 71.8%)
CIE-LAB	lab(11.70, 13.25, -29.59)
CIE-LCH	lch(11.70, 32.42, 294.13°)
OKLab	oklab(24.38% -0.0017 -0.0852)
OKLCH	oklch(24.38% 0.085 268.8)
XYZ	xyz(1.7749, 1.3617, 6.2989)
Luminance	0.0136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.97

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B48 #483D10

analogous

#103748 #101B48 #211048

triadic

#101B48 #48101B #1B4810

tetradic

#101B48 #481037 #483D10 #104821

square

#101B48 #481037 #483D10 #104821

split-complementary

#101B48 #482110 #374810

monochromatic

#060919 #060919 #101B48 #1B2E7A #2641AC

Accessibility & contrast

On white

16.50

#101B48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#101B48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B48

16.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B48	#FFFFFF	#000000	##FFFFFF
##101B48	1.00	16.50	1.27	16.50
#FFFFFF	16.50	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00224A

Deuteranopia (green-blind)

#001C47

Tritanopia (blue-blind)

#00262E

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #101b48;
/* rgb */ color: rgb(16, 27, 72);
/* oklch */ color: oklch(24.4% 0.085 268.8);

Tailwind

colors: {
  custom: {
    50: '#57567b',
    500: '#101b48',
    950: '#000000',
  },
}

SCSS

$custom: #101b48;
$custom-light: #57567b;
$custom-dark: #000000;

JSON

{
  "hex": "#101b48",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 72
  },
  "hsl": {
    "h": 228.214,
    "s": 63.636,
    "l": 17.255
  },
  "oklch": {
    "l": 0.2438,
    "c": 0.08524,
    "h": 268.8
  },
  "luminance": 0.01362
}

Semantic roles & 50–950 ramp

primary

#101B48

secondary

#827232

accent

#C641E7

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#030309

muted

#78787B

Preview Lab

Preview with #101B48

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

Preview Lab → · Contrast checker → · Palette generator →