#10103A#10103A

#10103A is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.5% C 0.079 H 276.9°. Best body text is #FFFFFF at 18.15:1 contrast (WCAG AA passes).

Color values

HEX	#10103A
RGB	rgb(16, 16, 58)
HSL	hsl(240, 57%, 15%)
HSV	hsv(240, 72%, 23%)
CMYK	cmyk(72.4%, 72.4%, 0%, 77.3%)
CIE-LAB	lab(7.10, 15.63, -27.17)
CIE-LCH	lch(7.10, 31.34, 299.91°)
OKLab	oklab(20.53% 0.0095 -0.0784)
OKLCH	oklch(20.53% 0.079 276.9)
XYZ	xyz(1.1625, 0.7861, 4.0926)
Luminance	0.0079 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Dark Navy

#000435

ΔE00 3.30

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10103A #3A3A10

analogous

#10253A #10103A #25103A

triadic

#10103A #3A1010 #103A10

tetradic

#10103A #3A1025 #3A3A10 #103A25

square

#10103A #3A1025 #3A3A10 #103A25

split-complementary

#10103A #3A2510 #253A10

monochromatic

#070718 #070718 #10103A #1D1D6A #2A2A9A

Accessibility & contrast

On white

18.15

#10103A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#10103A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10103A

18.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10103A	#FFFFFF	#000000	##FFFFFF
##10103A	1.00	18.15	1.16	18.15
#FFFFFF	18.15	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183B

Deuteranopia (green-blind)

#001439

Tritanopia (blue-blind)

#001B23

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #10103a;
/* rgb */ color: rgb(16, 16, 58);
/* oklch */ color: oklch(20.5% 0.079 276.9);

Tailwind

colors: {
  custom: {
    50: '#544e71',
    500: '#10103a',
    950: '#000000',
  },
}

SCSS

$custom: #10103a;
$custom-light: #544e71;
$custom-dark: #000000;

JSON

{
  "hex": "#10103a",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 58
  },
  "hsl": {
    "h": 240,
    "s": 56.757,
    "l": 14.51
  },
  "oklch": {
    "l": 0.2053,
    "c": 0.07898,
    "h": 276.9
  },
  "luminance": 0.00786
}

Semantic roles & 50–950 ramp

primary

#10103A

secondary

#747432

accent

#E048E0

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030107

muted

#78777A

Preview Lab

Preview with #10103A

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

Preview Lab → · Contrast checker → · Palette generator →