#17187E#17187E

#17187E is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.2% C 0.163 H 270.7°. Best body text is #FFFFFF at 14.30:1 contrast (WCAG AA passes).

Color values

HEX	#17187E
RGB	rgb(23, 24, 126)
HSL	hsl(239, 69%, 29%)
HSV	hsv(239, 82%, 49%)
CMYK	cmyk(81.7%, 81%, 0%, 50.6%)
CIE-LAB	lab(17.19, 37.10, -56.38)
CIE-LCH	lch(17.19, 67.49, 303.34°)
OKLab	oklab(30.2% 0.0021 -0.1633)
OKLCH	oklch(30.2% 0.163 270.7)
XYZ	xyz(4.4446, 2.3413, 19.9523)
Luminance	0.0234 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17187E #7E7D17

analogous

#174C7E #17187E #49177E

triadic

#17187E #7E1718 #187E17

tetradic

#17187E #7E174C #7E7D17 #177E49

square

#17187E #7E174C #7E7D17 #177E49

split-complementary

#17187E #7E4917 #4C7E17

monochromatic

#05051A #0E0E4A #17187E #2022B2 #3537DA

Accessibility & contrast

On white

14.30

#17187E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#17187E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17187E

14.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17187E	#FFFFFF	#000000	##FFFFFF
##17187E	1.00	14.30	1.47	14.30
#FFFFFF	14.30	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F81

Deuteranopia (green-blind)

#00257C

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #17187e;
/* rgb */ color: rgb(23, 24, 126);
/* oklch */ color: oklch(30.2% 0.163 270.7);

Tailwind

colors: {
  custom: {
    50: '#6957a5',
    500: '#17187e',
    950: '#000000',
  },
}

SCSS

$custom: #17187e;
$custom-light: #6957a5;
$custom-dark: #000000;

JSON

{
  "hex": "#17187e",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 126
  },
  "hsl": {
    "h": 239.417,
    "s": 69.128,
    "l": 29.216
  },
  "oklch": {
    "l": 0.30203,
    "c": 0.16327,
    "h": 270.7
  },
  "luminance": 0.02342
}

Semantic roles & 50–950 ramp

primary

#17187E

secondary

#B3B23E

accent

#EA3CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #17187E

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

Preview Lab → · Contrast checker → · Palette generator →