#17154D#17154D

#17154D is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.1% C 0.100 H 277.4°. Best body text is #FFFFFF at 16.79:1 contrast (WCAG AA passes).

Color values

HEX	#17154D
RGB	rgb(23, 21, 77)
HSL	hsl(242, 57%, 19%)
HSV	hsv(242, 73%, 30%)
CMYK	cmyk(70.1%, 72.7%, 0%, 69.8%)
CIE-LAB	lab(10.95, 20.96, -34.25)
CIE-LCH	lch(10.95, 40.16, 301.46°)
OKLab	oklab(24.11% 0.0129 -0.0988)
OKLCH	oklch(24.11% 0.1 277.4)
XYZ	xyz(1.9606, 1.2542, 7.1585)
Luminance	0.0125 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17154D #4B4D15

analogous

#152F4D #17154D #33154D

triadic

#17154D #4D1715 #154D17

tetradic

#17154D #4D152F #4B4D15 #154D33

square

#17154D #4D152F #4B4D15 #154D33

split-complementary

#17154D #4D3315 #2F4D15

monochromatic

#070718 #09081D #17154D #25227D #342FAD

Accessibility & contrast

On white

16.79

#17154D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#17154D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17154D

16.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17154D	#FFFFFF	#000000	##FFFFFF
##17154D	1.00	16.79	1.25	16.79
#FFFFFF	16.79	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00204F

Deuteranopia (green-blind)

#001B4C

Tritanopia (blue-blind)

#00242E

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #17154d;
/* rgb */ color: rgb(23, 21, 77);
/* oklch */ color: oklch(24.1% 0.100 277.4);

Tailwind

colors: {
  custom: {
    50: '#5c527f',
    500: '#17154d',
    950: '#000000',
  },
}

SCSS

$custom: #17154d;
$custom-light: #5c527f;
$custom-dark: #000000;

JSON

{
  "hex": "#17154d",
  "rgb": {
    "r": 23,
    "g": 21,
    "b": 77
  },
  "hsl": {
    "h": 242.143,
    "s": 57.143,
    "l": 19.216
  },
  "oklch": {
    "l": 0.24108,
    "c": 0.0996,
    "h": 277.4
  },
  "luminance": 0.01254
}

Semantic roles & 50–950 ramp

primary

#17154D

secondary

#828539

accent

#E047DB

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #17154D

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

Preview Lab → · Contrast checker → · Palette generator →