#101051#101051

#101051 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.1% C 0.114 H 273.0°. Best body text is #FFFFFF at 17.28:1 contrast (WCAG AA passes).

Color values

HEX	#101051
RGB	rgb(16, 16, 81)
HSL	hsl(240, 67%, 19%)
HSV	hsv(240, 80%, 32%)
CMYK	cmyk(80.2%, 80.2%, 0%, 68.2%)
CIE-LAB	lab(9.60, 24.97, -39.25)
CIE-LCH	lch(9.60, 46.52, 302.47°)
OKLab	oklab(23.13% 0.006 -0.1136)
OKLCH	oklch(23.13% 0.114 273)
XYZ	xyz(1.8837, 1.0746, 7.8911)
Luminance	0.0107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101051 #515110

analogous

#103151 #101051 #311051

triadic

#101051 #511010 #105110

tetradic

#101051 #511031 #515110 #105131

square

#101051 #511031 #515110 #105131

split-complementary

#101051 #513110 #315110

monochromatic

#05051A #06061E #101051 #1A1A84 #2424B7

Accessibility & contrast

On white

17.28

#101051 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#101051 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101051

17.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101051	#FFFFFF	#000000	##FFFFFF
##101051	1.00	17.28	1.21	17.28
#FFFFFF	17.28	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E53

Deuteranopia (green-blind)

#001750

Tritanopia (blue-blind)

#00232F

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #101051;
/* rgb */ color: rgb(16, 16, 81);
/* oklch */ color: oklch(23.1% 0.114 273.0);

Tailwind

colors: {
  custom: {
    50: '#5b4f83',
    500: '#101051',
    950: '#000000',
  },
}

SCSS

$custom: #101051;
$custom-light: #5b4f83;
$custom-dark: #000000;

JSON

{
  "hex": "#101051",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 81
  },
  "hsl": {
    "h": 240,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.23127,
    "c": 0.11373,
    "h": 273
  },
  "luminance": 0.01075
}

Semantic roles & 50–950 ramp

primary

#101051

secondary

#8B8B32

accent

#EA3EEA

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04020B

muted

#79787C

Preview Lab

Preview with #101051

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

Preview Lab → · Contrast checker → · Palette generator →