#17187D#17187D

#17187D is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.1% C 0.162 H 270.8°. Best body text is #FFFFFF at 14.35:1 contrast (WCAG AA passes).

Color values

HEX	#17187D
RGB	rgb(23, 24, 125)
HSL	hsl(239, 69%, 29%)
HSV	hsv(239, 82%, 49%)
CMYK	cmyk(81.6%, 80.8%, 0%, 51%)
CIE-LAB	lab(17.06, 36.75, -55.95)
CIE-LCH	lch(17.06, 66.94, 303.30°)
OKLab	oklab(30.08% 0.0023 -0.162)
OKLCH	oklch(30.08% 0.162 270.8)
XYZ	xyz(4.3804, 2.3156, 19.6142)
Luminance	0.0232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17187D #7D7C17

analogous

#174B7D #17187D #49177D

triadic

#17187D #7D1718 #187D17

tetradic

#17187D #7D174B #7D7C17 #177D49

square

#17187D #7D174B #7D7C17 #177D49

split-complementary

#17187D #7D4917 #4B7D17

monochromatic

#05051A #0D0E49 #17187D #2122B1 #3536DA

Accessibility & contrast

On white

14.35

#17187D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#17187D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17187D

14.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17187D	#FFFFFF	#000000	##FFFFFF
##17187D	1.00	14.35	1.46	14.35
#FFFFFF	14.35	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F80

Deuteranopia (green-blind)

#00257B

Tritanopia (blue-blind)

#00374A

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #17187d;
/* rgb */ color: rgb(23, 24, 125);
/* oklch */ color: oklch(30.1% 0.162 270.8);

Tailwind

colors: {
  custom: {
    50: '#6957a4',
    500: '#17187d',
    950: '#000000',
  },
}

SCSS

$custom: #17187d;
$custom-light: #6957a4;
$custom-dark: #000000;

JSON

{
  "hex": "#17187d",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 125
  },
  "hsl": {
    "h": 239.412,
    "s": 68.919,
    "l": 29.02
  },
  "oklch": {
    "l": 0.30082,
    "c": 0.16202,
    "h": 270.8
  },
  "luminance": 0.02316
}

Semantic roles & 50–950 ramp

primary

#17187D

secondary

#B2B13E

accent

#EA3CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #17187D

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

Preview Lab → · Contrast checker → · Palette generator →