#17237F#17237F

#17237F is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.0% C 0.153 H 269.1°. Best body text is #FFFFFF at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#17237F
RGB	rgb(23, 35, 127)
HSL	hsl(233, 69%, 29%)
HSV	hsv(233, 82%, 50%)
CMYK	cmyk(81.9%, 72.4%, 0%, 50.2%)
CIE-LAB	lab(19.70, 30.71, -52.86)
CIE-LCH	lch(19.70, 61.13, 300.16°)
OKLab	oklab(32.03% -0.0025 -0.1531)
OKLCH	oklch(32.03% 0.153 269.1)
XYZ	xyz(4.7838, 2.9160, 20.3853)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17237F #7F7317

analogous

#17577F #17237F #3F177F

triadic

#17237F #7F1723 #237F17

tetradic

#17237F #7F1757 #7F7317 #177F3F

square

#17237F #7F1757 #7F7317 #177F3F

split-complementary

#17237F #7F3F17 #577F17

monochromatic

#05071A #0E154B #17237F #2031B3 #3649DB

Accessibility & contrast

On white

13.26

#17237F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#17237F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17237F

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17237F	#FFFFFF	#000000	##FFFFFF
##17237F	1.00	13.26	1.58	13.26
#FFFFFF	13.26	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003582

Deuteranopia (green-blind)

#002B7D

Tritanopia (blue-blind)

#003D4E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #17237f;
/* rgb */ color: rgb(23, 35, 127);
/* oklch */ color: oklch(32.0% 0.153 269.1);

Tailwind

colors: {
  custom: {
    50: '#685ea5',
    500: '#17237f',
    950: '#000000',
  },
}

SCSS

$custom: #17237f;
$custom-light: #685ea5;
$custom-dark: #000000;

JSON

{
  "hex": "#17237f",
  "rgb": {
    "r": 23,
    "g": 35,
    "b": 127
  },
  "hsl": {
    "h": 233.077,
    "s": 69.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.32031,
    "c": 0.15312,
    "h": 269.1
  },
  "luminance": 0.02917
}

Semantic roles & 50–950 ramp

primary

#17237F

secondary

#B4A63E

accent

#D83CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #17237F

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

Preview Lab → · Contrast checker → · Palette generator →