#101B30#101B30

#101B30 is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.4% C 0.044 H 262.4°. Best body text is #FFFFFF at 17.19:1 contrast (WCAG AA passes).

Color values

HEX	#101B30
RGB	rgb(16, 27, 48)
HSL	hsl(219, 50%, 13%)
HSV	hsv(219, 67%, 19%)
CMYK	cmyk(66.7%, 43.8%, 0%, 81.2%)
CIE-LAB	lab(9.86, 2.97, -15.49)
CIE-LCH	lch(9.86, 15.77, 280.86°)
OKLab	oklab(22.38% -0.0058 -0.0438)
OKLCH	oklch(22.38% 0.044 262.4)
XYZ	xyz(1.1389, 1.1073, 2.9495)
Luminance	0.0111 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B30 #302510

analogous

#102B30 #101B30 #151030

triadic

#101B30 #30101B #1B3010

tetradic

#101B30 #30102B #302510 #103015

square

#101B30 #30102B #302510 #103015

split-complementary

#101B30 #301510 #2B3010

monochromatic

#080D17 #080D17 #101B30 #1F355E #2F4F8C

Accessibility & contrast

On white

17.19

#101B30 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#101B30 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B30

17.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B30	#FFFFFF	#000000	##FFFFFF
##101B30	1.00	17.19	1.22	17.19
#FFFFFF	17.19	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#121D31

Deuteranopia (green-blind)

#0F1A30

Tritanopia (blue-blind)

#012023

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #101b30;
/* rgb */ color: rgb(16, 27, 48);
/* oklch */ color: oklch(22.4% 0.044 262.4);

Tailwind

colors: {
  custom: {
    50: '#515668',
    500: '#101b30',
    950: '#000000',
  },
}

SCSS

$custom: #101b30;
$custom-light: #515668;
$custom-dark: #000000;

JSON

{
  "hex": "#101b30",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 48
  },
  "hsl": {
    "h": 219.375,
    "s": 50,
    "l": 12.549
  },
  "oklch": {
    "l": 0.22382,
    "c": 0.04419,
    "h": 262.4
  },
  "luminance": 0.01107
}

Semantic roles & 50–950 ramp

primary

#101B30

secondary

#695633

accent

#AA4EDA

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #101B30

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

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