#17128E#17128E

#17128E is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.5% C 0.187 H 269.9°. Best body text is #FFFFFF at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#17128E
RGB	rgb(23, 18, 142)
HSL	hsl(242, 78%, 31%)
HSV	hsv(242, 87%, 56%)
CMYK	cmyk(83.8%, 87.3%, 0%, 44.3%)
CIE-LAB	lab(18.22, 45.32, -64.75)
CIE-LCH	lch(18.22, 79.03, 304.99°)
OKLab	oklab(31.51% -0.0002 -0.1874)
OKLCH	oklch(31.51% 0.187 269.9)
XYZ	xyz(5.4505, 2.5671, 25.7942)
Luminance	0.0257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17128E #898E12

analogous

#124B8E #17128E #55128E

triadic

#17128E #8E1712 #128E17

tetradic

#17128E #8E124B #898E12 #128E55

square

#17128E #8E124B #898E12 #128E55

split-complementary

#17128E #8E5512 #4B8E12

monochromatic

#050421 #0E0B58 #17128E #2019C4 #3C35E5

Accessibility & contrast

On white

13.87

#17128E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#17128E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17128E

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17128E	#FFFFFF	#000000	##FFFFFF
##17128E	1.00	13.87	1.51	13.87
#FFFFFF	13.87	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003391

Deuteranopia (green-blind)

#00268C

Tritanopia (blue-blind)

#003C53

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #17128e;
/* rgb */ color: rgb(23, 18, 142);
/* oklch */ color: oklch(31.5% 0.187 269.9);

Tailwind

colors: {
  custom: {
    50: '#6e55b0',
    500: '#17128e',
    950: '#000000',
  },
}

SCSS

$custom: #17128e;
$custom-light: #6e55b0;
$custom-dark: #000000;

JSON

{
  "hex": "#17128e",
  "rgb": {
    "r": 23,
    "g": 18,
    "b": 142
  },
  "hsl": {
    "h": 242.419,
    "s": 77.5,
    "l": 31.373
  },
  "oklch": {
    "l": 0.31507,
    "c": 0.18736,
    "h": 269.9
  },
  "luminance": 0.02568
}

Semantic roles & 50–950 ramp

primary

#17128E

secondary

#BDC23A

accent

#F434EC

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #17128E

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

Preview Lab → · Contrast checker → · Palette generator →