#10193B#10193B

#10193B is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.7% C 0.067 H 269.3°. Best body text is #FFFFFF at 17.15:1 contrast (WCAG AA passes).

Color values

HEX	#10193B
RGB	rgb(16, 25, 59)
HSL	hsl(227, 57%, 15%)
HSV	hsv(227, 73%, 23%)
CMYK	cmyk(72.9%, 57.6%, 0%, 76.9%)
CIE-LAB	lab(9.96, 9.20, -23.25)
CIE-LCH	lch(9.96, 25.00, 291.58°)
OKLab	oklab(22.72% -0.0008 -0.0666)
OKLCH	oklch(22.72% 0.067 269.3)
XYZ	xyz(1.3505, 1.1211, 4.2820)
Luminance	0.0112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10193B #3B3210

analogous

#102F3B #10193B #1D103B

triadic

#10193B #3B1019 #193B10

tetradic

#10193B #3B102F #3B3210 #103B1D

square

#10193B #3B102F #3B3210 #103B1D

split-complementary

#10193B #3B1D10 #2F3B10

monochromatic

#070A18 #070A18 #10193B #1D2D6B #2A429B

Accessibility & contrast

On white

17.15

#10193B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#10193B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10193B

17.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10193B	#FFFFFF	#000000	##FFFFFF
##10193B	1.00	17.15	1.22	17.15
#FFFFFF	17.15	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#071D3C

Deuteranopia (green-blind)

#011A3A

Tritanopia (blue-blind)

#002127

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #10193b;
/* rgb */ color: rgb(16, 25, 59);
/* oklch */ color: oklch(22.7% 0.067 269.3);

Tailwind

colors: {
  custom: {
    50: '#545571',
    500: '#10193b',
    950: '#000000',
  },
}

SCSS

$custom: #10193b;
$custom-light: #545571;
$custom-dark: #000000;

JSON

{
  "hex": "#10193b",
  "rgb": {
    "r": 16,
    "g": 25,
    "b": 59
  },
  "hsl": {
    "h": 227.442,
    "s": 57.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.2272,
    "c": 0.0666,
    "h": 269.3
  },
  "luminance": 0.01121
}

Semantic roles & 50–950 ramp

primary

#10193B

secondary

#756732

accent

#C047E1

background

#F5F4F6

surface

#E8E7EC

border

#C4C3C7

text

#030307

muted

#78787A

Preview Lab

Preview with #10193B

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

Preview Lab → · Contrast checker → · Palette generator →