#17237C#17237C

#17237C is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.7% C 0.149 H 269.2°. Best body text is #FFFFFF at 13.39:1 contrast (WCAG AA passes).

Color values

HEX	#17237C
RGB	rgb(23, 35, 124)
HSL	hsl(233, 69%, 29%)
HSV	hsv(233, 81%, 49%)
CMYK	cmyk(81.5%, 71.8%, 0%, 51.4%)
CIE-LAB	lab(19.39, 29.57, -51.47)
CIE-LCH	lch(19.39, 59.36, 299.87°)
OKLab	oklab(31.71% -0.0021 -0.1491)
OKLCH	oklch(31.71% 0.149 269.2)
XYZ	xyz(4.5912, 2.8389, 19.3709)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17237C #7C7017

analogous

#17567C #17237C #3E177C

triadic

#17237C #7C1723 #237C17

tetradic

#17237C #7C1756 #7C7017 #177C3E

square

#17237C #7C1756 #7C7017 #177C3E

split-complementary

#17237C #7C3E17 #567C17

monochromatic

#05071A #0D1448 #17237C #2132B0 #3448D9

Accessibility & contrast

On white

13.39

#17237C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#17237C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17237C

13.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17237C	#FFFFFF	#000000	##FFFFFF
##17237C	1.00	13.39	1.57	13.39
#FFFFFF	13.39	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347F

Deuteranopia (green-blind)

#002A7A

Tritanopia (blue-blind)

#003C4C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #17237c;
/* rgb */ color: rgb(23, 35, 124);
/* oklch */ color: oklch(31.7% 0.149 269.2);

Tailwind

colors: {
  custom: {
    50: '#675ea3',
    500: '#17237c',
    950: '#000000',
  },
}

SCSS

$custom: #17237c;
$custom-light: #675ea3;
$custom-dark: #000000;

JSON

{
  "hex": "#17237c",
  "rgb": {
    "r": 23,
    "g": 35,
    "b": 124
  },
  "hsl": {
    "h": 232.871,
    "s": 68.707,
    "l": 28.824
  },
  "oklch": {
    "l": 0.31706,
    "c": 0.14908,
    "h": 269.2
  },
  "luminance": 0.02839
}

Semantic roles & 50–950 ramp

primary

#17237C

secondary

#B1A33E

accent

#D73CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #17237C

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

Preview Lab → · Contrast checker → · Palette generator →