#17278F#17278F

#17278F is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.5% C 0.170 H 268.0°. Best body text is #FFFFFF at 12.19:1 contrast (WCAG AA passes).

Color values

HEX	#17278F
RGB	rgb(23, 39, 143)
HSL	hsl(232, 72%, 33%)
HSV	hsv(232, 84%, 56%)
CMYK	cmyk(83.9%, 72.7%, 0%, 43.9%)
CIE-LAB	lab(22.36, 34.14, -58.52)
CIE-LCH	lch(22.36, 67.75, 300.26°)
OKLab	oklab(34.46% -0.0059 -0.1696)
OKLCH	oklch(34.46% 0.17 268)
XYZ	xyz(6.0351, 3.6156, 26.3611)
Luminance	0.0362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17278F #8F7F17

analogous

#17638F #17278F #43178F

triadic

#17278F #8F1727 #278F17

tetradic

#17278F #8F1763 #8F7F17 #178F43

square

#17278F #8F1763 #8F7F17 #178F43

split-complementary

#17278F #8F4317 #638F17

monochromatic

#060A26 #0F195A #17278F #1F35C4 #4055E0

Accessibility & contrast

On white

12.19

#17278F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#17278F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17278F

12.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17278F	#FFFFFF	#000000	##FFFFFF
##17278F	1.00	12.19	1.72	12.19
#FFFFFF	12.19	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B92

Deuteranopia (green-blind)

#00308D

Tritanopia (blue-blind)

#004558

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #17278f;
/* rgb */ color: rgb(23, 39, 143);
/* oklch */ color: oklch(34.5% 0.170 268.0);

Tailwind

colors: {
  custom: {
    50: '#6c61b1',
    500: '#17278f',
    950: '#000000',
  },
}

SCSS

$custom: #17278f;
$custom-light: #6c61b1;
$custom-dark: #000000;

JSON

{
  "hex": "#17278f",
  "rgb": {
    "r": 23,
    "g": 39,
    "b": 143
  },
  "hsl": {
    "h": 232,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.34456,
    "c": 0.16968,
    "h": 268
  },
  "luminance": 0.03616
}

Semantic roles & 50–950 ramp

primary

#17278F

secondary

#C1B041

accent

#D739EF

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#080511

muted

#7B7980

Preview Lab

Preview with #17278F

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

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