#101C3E#101C3E

#101C3E is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.7% C 0.067 H 266.7°. Best body text is #FFFFFF at 16.70:1 contrast (WCAG AA passes).

Color values

HEX	#101C3E
RGB	rgb(16, 28, 62)
HSL	hsl(224, 59%, 15%)
HSV	hsv(224, 74%, 24%)
CMYK	cmyk(74.2%, 54.8%, 0%, 75.7%)
CIE-LAB	lab(11.19, 8.15, -23.40)
CIE-LCH	lch(11.19, 24.78, 289.20°)
OKLab	oklab(23.73% -0.0039 -0.067)
OKLCH	oklch(23.73% 0.067 266.7)
XYZ	xyz(1.4981, 1.2883, 4.7262)
Luminance	0.0129 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101C3E #3E3210

analogous

#10333E #101C3E #1B103E

triadic

#101C3E #3E101C #1C3E10

tetradic

#101C3E #3E1033 #3E3210 #103E1B

square

#101C3E #3E1033 #3E3210 #103E1B

split-complementary

#101C3E #3E1B10 #333E10

monochromatic

#060B18 #060B18 #101C3E #1D326F #29489F

Accessibility & contrast

On white

16.70

#101C3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#101C3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C3E

16.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101C3E	#FFFFFF	#000000	##FFFFFF
##101C3E	1.00	16.70	1.26	16.70
#FFFFFF	16.70	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A203F

Deuteranopia (green-blind)

#031C3D

Tritanopia (blue-blind)

#00242A

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #101c3e;
/* rgb */ color: rgb(16, 28, 62);
/* oklch */ color: oklch(23.7% 0.067 266.7);

Tailwind

colors: {
  custom: {
    50: '#545773',
    500: '#101c3e',
    950: '#000000',
  },
}

SCSS

$custom: #101c3e;
$custom-light: #545773;
$custom-dark: #000000;

JSON

{
  "hex": "#101c3e",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 62
  },
  "hsl": {
    "h": 224.348,
    "s": 58.974,
    "l": 15.294
  },
  "oklch": {
    "l": 0.23733,
    "c": 0.06711,
    "h": 266.7
  },
  "luminance": 0.01288
}

Semantic roles & 50–950 ramp

primary

#101C3E

secondary

#786632

accent

#B946E2

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #101C3E

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

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