#17144B#17144B

#17144B is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.7% C 0.098 H 278.3°. Best body text is #FFFFFF at 16.96:1 contrast (WCAG AA passes).

Color values

HEX	#17144B
RGB	rgb(23, 20, 75)
HSL	hsl(243, 58%, 19%)
HSV	hsv(243, 73%, 29%)
CMYK	cmyk(69.3%, 73.3%, 0%, 70.6%)
CIE-LAB	lab(10.49, 20.89, -33.63)
CIE-LCH	lch(10.49, 39.59, 301.85°)
OKLab	oklab(23.71% 0.0141 -0.0969)
OKLCH	oklch(23.71% 0.098 278.3)
XYZ	xyz(1.8731, 1.1903, 6.7863)
Luminance	0.0119 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17144B #484B14

analogous

#142C4B #17144B #32144B

triadic

#17144B #4B1714 #144B17

tetradic

#17144B #4B142C #484B14 #144B32

square

#17144B #4B142C #484B14 #144B32

split-complementary

#17144B #4B3214 #2C4B14

monochromatic

#070618 #08071B #17144B #26217B #352EAC

Accessibility & contrast

On white

16.96

#17144B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#17144B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17144B

16.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17144B	#FFFFFF	#000000	##FFFFFF
##17144B	1.00	16.96	1.24	16.96
#FFFFFF	16.96	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F4D

Deuteranopia (green-blind)

#001A4A

Tritanopia (blue-blind)

#00222D

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #17144b;
/* rgb */ color: rgb(23, 20, 75);
/* oklch */ color: oklch(23.7% 0.098 278.3);

Tailwind

colors: {
  custom: {
    50: '#5c527e',
    500: '#17144b',
    950: '#000000',
  },
}

SCSS

$custom: #17144b;
$custom-light: #5c527e;
$custom-dark: #000000;

JSON

{
  "hex": "#17144b",
  "rgb": {
    "r": 23,
    "g": 20,
    "b": 75
  },
  "hsl": {
    "h": 243.273,
    "s": 57.895,
    "l": 18.627
  },
  "oklch": {
    "l": 0.23708,
    "c": 0.09796,
    "h": 278.3
  },
  "luminance": 0.0119
}

Semantic roles & 50–950 ramp

primary

#17144B

secondary

#7F8338

accent

#E147D9

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #17144B

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

Preview Lab → · Contrast checker → · Palette generator →