#17237E#17237E

#17237E is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.9% C 0.152 H 269.1°. Best body text is #FFFFFF at 13.31:1 contrast (WCAG AA passes).

Color values

HEX	#17237E
RGB	rgb(23, 35, 126)
HSL	hsl(233, 69%, 29%)
HSV	hsv(233, 82%, 49%)
CMYK	cmyk(81.7%, 72.2%, 0%, 50.6%)
CIE-LAB	lab(19.60, 30.33, -52.40)
CIE-LCH	lch(19.60, 60.54, 300.07°)
OKLab	oklab(31.92% -0.0024 -0.1518)
OKLCH	oklch(31.92% 0.152 269.1)
XYZ	xyz(4.7190, 2.8900, 20.0437)
Luminance	0.0289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17237E #7E7217

analogous

#17577E #17237E #3F177E

triadic

#17237E #7E1723 #237E17

tetradic

#17237E #7E1757 #7E7217 #177E3F

square

#17237E #7E1757 #7E7217 #177E3F

split-complementary

#17237E #7E3F17 #577E17

monochromatic

#05071A #0E154A #17237E #2031B2 #3548DA

Accessibility & contrast

On white

13.31

#17237E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#17237E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17237E

13.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17237E	#FFFFFF	#000000	##FFFFFF
##17237E	1.00	13.31	1.58	13.31
#FFFFFF	13.31	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003481

Deuteranopia (green-blind)

#002A7C

Tritanopia (blue-blind)

#003C4D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #17237e;
/* rgb */ color: rgb(23, 35, 126);
/* oklch */ color: oklch(31.9% 0.152 269.1);

Tailwind

colors: {
  custom: {
    50: '#685ea4',
    500: '#17237e',
    950: '#000000',
  },
}

SCSS

$custom: #17237e;
$custom-light: #685ea4;
$custom-dark: #000000;

JSON

{
  "hex": "#17237e",
  "rgb": {
    "r": 23,
    "g": 35,
    "b": 126
  },
  "hsl": {
    "h": 233.01,
    "s": 69.128,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31922,
    "c": 0.15178,
    "h": 269.1
  },
  "luminance": 0.02891
}

Semantic roles & 50–950 ramp

primary

#17237E

secondary

#B3A53E

accent

#D73CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #17237E

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

Preview Lab → · Contrast checker → · Palette generator →