#101B49#101B49

#101B49 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.5% C 0.087 H 268.9°. Best body text is #FFFFFF at 16.47:1 contrast (WCAG AA passes).

Color values

HEX	#101B49
RGB	rgb(16, 27, 73)
HSL	hsl(228, 64%, 17%)
HSV	hsv(228, 78%, 29%)
CMYK	cmyk(78.1%, 63%, 0%, 71.4%)
CIE-LAB	lab(11.79, 13.68, -30.14)
CIE-LCH	lch(11.79, 33.10, 294.42°)
OKLab	oklab(24.48% -0.0017 -0.0868)
OKLCH	oklch(24.48% 0.087 268.9)
XYZ	xyz(1.8078, 1.3749, 6.4721)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.98

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B49 #493E10

analogous

#103849 #101B49 #211049

triadic

#101B49 #49101B #1B4910

tetradic

#101B49 #491038 #493E10 #104921

square

#101B49 #491038 #493E10 #104921

split-complementary

#101B49 #492110 #384910

monochromatic

#060919 #060919 #101B49 #1B2E7B #2640AD

Accessibility & contrast

On white

16.47

#101B49 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#101B49 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B49

16.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B49	#FFFFFF	#000000	##FFFFFF
##101B49	1.00	16.47	1.27	16.47
#FFFFFF	16.47	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00224B

Deuteranopia (green-blind)

#001D48

Tritanopia (blue-blind)

#00262E

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #101b49;
/* rgb */ color: rgb(16, 27, 73);
/* oklch */ color: oklch(24.5% 0.087 268.9);

Tailwind

colors: {
  custom: {
    50: '#57567c',
    500: '#101b49',
    950: '#000000',
  },
}

SCSS

$custom: #101b49;
$custom-light: #57567c;
$custom-dark: #000000;

JSON

{
  "hex": "#101b49",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 73
  },
  "hsl": {
    "h": 228.421,
    "s": 64.045,
    "l": 17.451
  },
  "oklch": {
    "l": 0.24475,
    "c": 0.08686,
    "h": 268.9
  },
  "luminance": 0.01375
}

Semantic roles & 50–950 ramp

primary

#101B49

secondary

#837332

accent

#C741E7

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #101B49

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

Preview Lab → · Contrast checker → · Palette generator →