#17278E#17278E

#17278E is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.3% C 0.168 H 268.0°. Best body text is #FFFFFF at 12.23:1 contrast (WCAG AA passes).

Color values

HEX	#17278E
RGB	rgb(23, 39, 142)
HSL	hsl(232, 72%, 32%)
HSV	hsv(232, 84%, 56%)
CMYK	cmyk(83.8%, 72.5%, 0%, 44.3%)
CIE-LAB	lab(22.25, 33.77, -58.07)
CIE-LCH	lch(22.25, 67.18, 300.17°)
OKLab	oklab(34.35% -0.0058 -0.1683)
OKLCH	oklch(34.35% 0.168 268)
XYZ	xyz(5.9597, 3.5855, 25.9639)
Luminance	0.0359 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17278E #8E7E17

analogous

#17628E #17278E #43178E

triadic

#17278E #8E1727 #278E17

tetradic

#17278E #8E1762 #8E7E17 #178E43

square

#17278E #8E1762 #8E7E17 #178E43

split-complementary

#17278E #8E4317 #628E17

monochromatic

#060A25 #0E1959 #17278E #2035C3 #3F55E0

Accessibility & contrast

On white

12.23

#17278E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#17278E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17278E

12.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17278E	#FFFFFF	#000000	##FFFFFF
##17278E	1.00	12.23	1.72	12.23
#FFFFFF	12.23	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B91

Deuteranopia (green-blind)

#002F8C

Tritanopia (blue-blind)

#004457

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #17278e;
/* rgb */ color: rgb(23, 39, 142);
/* oklch */ color: oklch(34.3% 0.168 268.0);

Tailwind

colors: {
  custom: {
    50: '#6c61b0',
    500: '#17278e',
    950: '#000000',
  },
}

SCSS

$custom: #17278e;
$custom-light: #6c61b0;
$custom-dark: #000000;

JSON

{
  "hex": "#17278e",
  "rgb": {
    "r": 23,
    "g": 39,
    "b": 142
  },
  "hsl": {
    "h": 231.933,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.34347,
    "c": 0.16839,
    "h": 268
  },
  "luminance": 0.03586
}

Semantic roles & 50–950 ramp

primary

#17278E

secondary

#C0AF40

accent

#D639EF

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#080511

muted

#7B7980

Preview Lab

Preview with #17278E

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

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