#101B56#101B56

#101B56 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.8% C 0.107 H 269.1°. Best body text is #FFFFFF at 15.99:1 contrast (WCAG AA passes).

Color values

HEX	#101B56
RGB	rgb(16, 27, 86)
HSL	hsl(231, 69%, 20%)
HSV	hsv(231, 81%, 34%)
CMYK	cmyk(81.4%, 68.6%, 0%, 66.3%)
CIE-LAB	lab(13.02, 19.22, -37.04)
CIE-LCH	lch(13.02, 41.72, 297.42°)
OKLab	oklab(25.77% -0.0017 -0.1071)
OKLCH	oklch(25.77% 0.107 269.1)
XYZ	xyz(2.2848, 1.5657, 8.9841)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B56 #564B10

analogous

#103E56 #101B56 #281056

triadic

#101B56 #56101B #1B5610

tetradic

#101B56 #56103E #564B10 #105628

square

#101B56 #56103E #564B10 #105628

split-complementary

#101B56 #562810 #3E5610

monochromatic

#05081A #060B22 #101B56 #1A2B8A #233BBD

Accessibility & contrast

On white

15.99

#101B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#101B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B56

15.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B56	#FFFFFF	#000000	##FFFFFF
##101B56	1.00	15.99	1.31	15.99
#FFFFFF	15.99	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002558

Deuteranopia (green-blind)

#001E55

Tritanopia (blue-blind)

#002A35

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #101b56;
/* rgb */ color: rgb(16, 27, 86);
/* oklch */ color: oklch(25.8% 0.107 269.1);

Tailwind

colors: {
  custom: {
    50: '#5b5786',
    500: '#101b56',
    950: '#000000',
  },
}

SCSS

$custom: #101b56;
$custom-light: #5b5786;
$custom-dark: #000000;

JSON

{
  "hex": "#101b56",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 86
  },
  "hsl": {
    "h": 230.571,
    "s": 68.627,
    "l": 20
  },
  "oklch": {
    "l": 0.25771,
    "c": 0.10709,
    "h": 269.1
  },
  "luminance": 0.01566
}

Semantic roles & 50–950 ramp

primary

#101B56

secondary

#8F8132

accent

#D03CEB

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #101B56

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

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