#101C3C#101C3C

#101C3C is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.6% C 0.064 H 266.2°. Best body text is #FFFFFF at 16.75:1 contrast (WCAG AA passes).

Color values

HEX	#101C3C
RGB	rgb(16, 28, 60)
HSL	hsl(224, 58%, 15%)
HSV	hsv(224, 73%, 24%)
CMYK	cmyk(73.3%, 53.3%, 0%, 76.5%)
CIE-LAB	lab(11.04, 7.29, -22.23)
CIE-LCH	lch(11.04, 23.39, 288.15°)
OKLab	oklab(23.57% -0.0042 -0.0635)
OKLCH	oklch(23.57% 0.064 266.2)
XYZ	xyz(1.4443, 1.2668, 4.4425)
Luminance	0.0127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101C3C #3C3010

analogous

#10323C #101C3C #1A103C

triadic

#101C3C #3C101C #1C3C10

tetradic

#101C3C #3C1032 #3C3010 #103C1A

square

#101C3C #3C1032 #3C3010 #103C1A

split-complementary

#101C3C #3C1A10 #323C10

monochromatic

#060B18 #060B18 #101C3C #1D336C #2A499D

Accessibility & contrast

On white

16.75

#101C3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#101C3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C3C

16.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101C3C	#FFFFFF	#000000	##FFFFFF
##101C3C	1.00	16.75	1.25	16.75
#FFFFFF	16.75	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C203D

Deuteranopia (green-blind)

#051C3B

Tritanopia (blue-blind)

#002329

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #101c3c;
/* rgb */ color: rgb(16, 28, 60);
/* oklch */ color: oklch(23.6% 0.064 266.2);

Tailwind

colors: {
  custom: {
    50: '#545772',
    500: '#101c3c',
    950: '#000000',
  },
}

SCSS

$custom: #101c3c;
$custom-light: #545772;
$custom-dark: #000000;

JSON

{
  "hex": "#101c3c",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 60
  },
  "hsl": {
    "h": 223.636,
    "s": 57.895,
    "l": 14.902
  },
  "oklch": {
    "l": 0.23568,
    "c": 0.06369,
    "h": 266.2
  },
  "luminance": 0.01267
}

Semantic roles & 50–950 ramp

primary

#101C3C

secondary

#766332

accent

#B747E1

background

#F5F5F6

surface

#E8E9EC

border

#C4C5C7

text

#030308

muted

#78787B

Preview Lab

Preview with #101C3C

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

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