#101730#101730

#101730 is a very dark, muted blue. Relative luminance 0.009; OKLCH L 21.3% C 0.050 H 269.9°. Best body text is #FFFFFF at 17.69:1 contrast (WCAG AA passes).

Color values

HEX	#101730
RGB	rgb(16, 23, 48)
HSL	hsl(227, 50%, 13%)
HSV	hsv(227, 67%, 19%)
CMYK	cmyk(66.7%, 52.1%, 0%, 81.2%)
CIE-LAB	lab(8.45, 6.09, -17.72)
CIE-LCH	lch(8.45, 18.74, 288.98°)
OKLab	oklab(21.3% -0.0001 -0.0504)
OKLCH	oklch(21.3% 0.05 269.9)
XYZ	xyz(1.0534, 0.9363, 2.9209)
Luminance	0.0094 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101730 #302910

analogous

#102730 #101730 #191030

triadic

#101730 #301017 #173010

tetradic

#101730 #301027 #302910 #103019

square

#101730 #301027 #302910 #103019

split-complementary

#101730 #301910 #273010

monochromatic

#080B17 #080B17 #101730 #1F2D5E #2F438C

Accessibility & contrast

On white

17.69

#101730 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#101730 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101730

17.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101730	#FFFFFF	#000000	##FFFFFF
##101730	1.00	17.69	1.19	17.69
#FFFFFF	17.69	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C1A31

Deuteranopia (green-blind)

#08172F

Tritanopia (blue-blind)

#021C21

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #101730;
/* rgb */ color: rgb(16, 23, 48);
/* oklch */ color: oklch(21.3% 0.050 269.9);

Tailwind

colors: {
  custom: {
    50: '#515368',
    500: '#101730',
    950: '#000000',
  },
}

SCSS

$custom: #101730;
$custom-light: #515368;
$custom-dark: #000000;

JSON

{
  "hex": "#101730",
  "rgb": {
    "r": 16,
    "g": 23,
    "b": 48
  },
  "hsl": {
    "h": 226.875,
    "s": 50,
    "l": 12.549
  },
  "oklch": {
    "l": 0.21297,
    "c": 0.05037,
    "h": 269.9
  },
  "luminance": 0.00936
}

Semantic roles & 50–950 ramp

primary

#101730

secondary

#695D33

accent

#BB4EDA

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #101730

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

Preview Lab → · Contrast checker → · Palette generator →