#17318E#17318E

#17318E is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.2% C 0.157 H 266.1°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#17318E
RGB	rgb(23, 49, 142)
HSL	hsl(227, 72%, 32%)
HSV	hsv(227, 84%, 56%)
CMYK	cmyk(83.8%, 65.5%, 0%, 44.3%)
CIE-LAB	lab(24.74, 27.11, -53.98)
CIE-LCH	lch(24.74, 60.41, 296.66°)
OKLab	oklab(36.16% -0.0105 -0.1563)
OKLCH	oklch(36.16% 0.157 266.1)
XYZ	xyz(6.3324, 4.3310, 26.0882)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17318E #8E7417

analogous

#176C8E #17318E #39178E

triadic

#17318E #8E1731 #318E17

tetradic

#17318E #8E176C #8E7417 #178E39

square

#17318E #8E176C #8E7417 #178E39

split-complementary

#17318E #8E3917 #6C8E17

monochromatic

#060D25 #0E1F59 #17318E #2043C3 #3F63E0

Accessibility & contrast

On white

11.25

#17318E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#17318E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17318E

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17318E	#FFFFFF	#000000	##FFFFFF
##17318E	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004091

Deuteranopia (green-blind)

#00358C

Tritanopia (blue-blind)

#004A5B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #17318e;
/* rgb */ color: rgb(23, 49, 142);
/* oklch */ color: oklch(36.2% 0.157 266.1);

Tailwind

colors: {
  custom: {
    50: '#6b68b0',
    500: '#17318e',
    950: '#000000',
  },
}

SCSS

$custom: #17318e;
$custom-light: #6b68b0;
$custom-dark: #000000;

JSON

{
  "hex": "#17318e",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 142
  },
  "hsl": {
    "h": 226.891,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.36161,
    "c": 0.15666,
    "h": 266.1
  },
  "luminance": 0.04332
}

Semantic roles & 50–950 ramp

primary

#17318E

secondary

#C0A440

accent

#C739EF

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080611

muted

#7B7A80

Preview Lab

Preview with #17318E

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

Preview Lab → · Contrast checker → · Palette generator →