#17154B#17154B

#17154B is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.9% C 0.097 H 277.8°. Best body text is #FFFFFF at 16.86:1 contrast (WCAG AA passes).

Color values

HEX	#17154B
RGB	rgb(23, 21, 75)
HSL	hsl(242, 56%, 19%)
HSV	hsv(242, 72%, 29%)
CMYK	cmyk(69.3%, 72%, 0%, 70.6%)
CIE-LAB	lab(10.75, 20.18, -33.20)
CIE-LCH	lch(10.75, 38.85, 301.30°)
OKLab	oklab(23.9% 0.0132 -0.0957)
OKLCH	oklch(23.9% 0.097 277.8)
XYZ	xyz(1.8911, 1.2263, 6.7923)
Luminance	0.0123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17154B #494B15

analogous

#152E4B #17154B #32154B

triadic

#17154B #4B1715 #154B17

tetradic

#17154B #4B152E #494B15 #154B32

square

#17154B #4B152E #494B15 #154B32

split-complementary

#17154B #4B3215 #2E4B15

monochromatic

#070718 #08081B #17154B #26227B #3430AB

Accessibility & contrast

On white

16.86

#17154B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#17154B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17154B

16.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17154B	#FFFFFF	#000000	##FFFFFF
##17154B	1.00	16.86	1.25	16.86
#FFFFFF	16.86	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F4D

Deuteranopia (green-blind)

#001B4A

Tritanopia (blue-blind)

#00232D

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #17154b;
/* rgb */ color: rgb(23, 21, 75);
/* oklch */ color: oklch(23.9% 0.097 277.8);

Tailwind

colors: {
  custom: {
    50: '#5c527e',
    500: '#17154b',
    950: '#000000',
  },
}

SCSS

$custom: #17154b;
$custom-light: #5c527e;
$custom-dark: #000000;

JSON

{
  "hex": "#17154b",
  "rgb": {
    "r": 23,
    "g": 21,
    "b": 75
  },
  "hsl": {
    "h": 242.222,
    "s": 56.25,
    "l": 18.824
  },
  "oklch": {
    "l": 0.239,
    "c": 0.09657,
    "h": 277.8
  },
  "luminance": 0.01226
}

Semantic roles & 50–950 ramp

primary

#17154B

secondary

#808339

accent

#E048DA

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #17154B

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

Preview Lab → · Contrast checker → · Palette generator →