#17128C#17128C

#17128C is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.2% C 0.185 H 270.1°. Best body text is #FFFFFF at 13.99:1 contrast (WCAG AA passes).

Color values

HEX	#17128C
RGB	rgb(23, 18, 140)
HSL	hsl(242, 77%, 31%)
HSV	hsv(242, 87%, 55%)
CMYK	cmyk(83.6%, 87.1%, 0%, 45.1%)
CIE-LAB	lab(17.95, 44.69, -63.95)
CIE-LCH	lch(17.95, 78.02, 304.95°)
OKLab	oklab(31.25% 0.0002 -0.185)
OKLCH	oklch(31.25% 0.185 270.1)
XYZ	xyz(5.3017, 2.5076, 25.0105)
Luminance	0.0251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17128C #878C12

analogous

#124A8C #17128C #54128C

triadic

#17128C #8C1712 #128C17

tetradic

#17128C #8C124A #878C12 #128C54

square

#17128C #8C124A #878C12 #128C54

split-complementary

#17128C #8C5412 #4A8C12

monochromatic

#050420 #0E0B56 #17128C #2019C2 #3B34E5

Accessibility & contrast

On white

13.99

#17128C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#17128C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17128C

13.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17128C	#FFFFFF	#000000	##FFFFFF
##17128C	1.00	13.99	1.50	13.99
#FFFFFF	13.99	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328F

Deuteranopia (green-blind)

#00258A

Tritanopia (blue-blind)

#003B52

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #17128c;
/* rgb */ color: rgb(23, 18, 140);
/* oklch */ color: oklch(31.2% 0.185 270.1);

Tailwind

colors: {
  custom: {
    50: '#6e55af',
    500: '#17128c',
    950: '#000000',
  },
}

SCSS

$custom: #17128c;
$custom-light: #6e55af;
$custom-dark: #000000;

JSON

{
  "hex": "#17128c",
  "rgb": {
    "r": 23,
    "g": 18,
    "b": 140
  },
  "hsl": {
    "h": 242.459,
    "s": 77.215,
    "l": 30.98
  },
  "oklch": {
    "l": 0.31248,
    "c": 0.18503,
    "h": 270.1
  },
  "luminance": 0.02508
}

Semantic roles & 50–950 ramp

primary

#17128C

secondary

#BBC039

accent

#F434EC

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #17128C

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

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