#10185B#10185B

#10185B is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.7% C 0.118 H 269.9°. Best body text is #FFFFFF at 16.11:1 contrast (WCAG AA passes).

Color values

HEX	#10185B
RGB	rgb(16, 24, 91)
HSL	hsl(234, 70%, 21%)
HSV	hsv(234, 82%, 36%)
CMYK	cmyk(82.4%, 73.6%, 0%, 64.3%)
CIE-LAB	lab(12.73, 23.44, -40.89)
CIE-LCH	lch(12.73, 47.13, 299.82°)
OKLab	oklab(25.72% -0.0001 -0.1184)
OKLCH	oklch(25.72% 0.118 269.9)
XYZ	xyz(2.4280, 1.5185, 10.0606)
Luminance	0.0152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10185B #5B5310

analogous

#103D5B #10185B #2D105B

triadic

#10185B #5B1018 #185B10

tetradic

#10185B #5B103D #5B5310 #105B2D

square

#10185B #5B103D #5B5310 #105B2D

split-complementary

#10185B #5B2D10 #3D5B10

monochromatic

#05071A #070A27 #10185B #19268F #2233C3

Accessibility & contrast

On white

16.11

#10185B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#10185B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10185B

16.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10185B	#FFFFFF	#000000	##FFFFFF
##10185B	1.00	16.11	1.30	16.11
#FFFFFF	16.11	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255D

Deuteranopia (green-blind)

#001D5A

Tritanopia (blue-blind)

#002A37

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #10185b;
/* rgb */ color: rgb(16, 24, 91);
/* oklch */ color: oklch(25.7% 0.118 269.9);

Tailwind

colors: {
  custom: {
    50: '#5d558a',
    500: '#10185b',
    950: '#000000',
  },
}

SCSS

$custom: #10185b;
$custom-light: #5d558a;
$custom-dark: #000000;

JSON

{
  "hex": "#10185b",
  "rgb": {
    "r": 16,
    "g": 24,
    "b": 91
  },
  "hsl": {
    "h": 233.6,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.25715,
    "c": 0.11837,
    "h": 269.9
  },
  "luminance": 0.01519
}

Semantic roles & 50–950 ramp

primary

#10185B

secondary

#948A33

accent

#DA3BED

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #10185B

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

Preview Lab → · Contrast checker → · Palette generator →