#101B47#101B47

#101B47 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.3% C 0.084 H 268.8°. Best body text is #FFFFFF at 16.54:1 contrast (WCAG AA passes).

Color values

HEX	#101B47
RGB	rgb(16, 27, 71)
HSL	hsl(228, 63%, 17%)
HSV	hsv(228, 77%, 28%)
CMYK	cmyk(77.5%, 62%, 0%, 72.2%)
CIE-LAB	lab(11.61, 12.82, -29.04)
CIE-LCH	lch(11.61, 31.74, 293.83°)
OKLab	oklab(24.29% -0.0018 -0.0836)
OKLCH	oklch(24.29% 0.084 268.8)
XYZ	xyz(1.7426, 1.3488, 6.1285)
Luminance	0.0135 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B47 #473C10

analogous

#103747 #101B47 #211047

triadic

#101B47 #47101B #1B4710

tetradic

#101B47 #471037 #473C10 #104721

square

#101B47 #471037 #473C10 #104721

split-complementary

#101B47 #472110 #374710

monochromatic

#060919 #060919 #101B47 #1B2E79 #2741AB

Accessibility & contrast

On white

16.54

#101B47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#101B47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B47

16.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B47	#FFFFFF	#000000	##FFFFFF
##101B47	1.00	16.54	1.27	16.54
#FFFFFF	16.54	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002149

Deuteranopia (green-blind)

#001C46

Tritanopia (blue-blind)

#00262D

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #101b47;
/* rgb */ color: rgb(16, 27, 71);
/* oklch */ color: oklch(24.3% 0.084 268.8);

Tailwind

colors: {
  custom: {
    50: '#57567b',
    500: '#101b47',
    950: '#000000',
  },
}

SCSS

$custom: #101b47;
$custom-light: #57567b;
$custom-dark: #000000;

JSON

{
  "hex": "#101b47",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 71
  },
  "hsl": {
    "h": 228,
    "s": 63.218,
    "l": 17.059
  },
  "oklch": {
    "l": 0.24286,
    "c": 0.08362,
    "h": 268.8
  },
  "luminance": 0.01349
}

Semantic roles & 50–950 ramp

primary

#101B47

secondary

#817132

accent

#C542E6

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#030309

muted

#78787B

Preview Lab

Preview with #101B47

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

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