#17304A#17304A

#17304A is a dark, muted cyan. Relative luminance 0.028; OKLCH L 30.3% C 0.057 H 251.0°. Best body text is #FFFFFF at 13.48:1 contrast (WCAG AA passes).

Color values

HEX	#17304A
RGB	rgb(23, 48, 74)
HSL	hsl(211, 53%, 19%)
HSV	hsv(211, 69%, 29%)
CMYK	cmyk(68.9%, 35.1%, 0%, 71%)
CIE-LAB	lab(19.18, -0.12, -18.99)
CIE-LCH	lch(19.18, 18.99, 269.65°)
OKLab	oklab(30.29% -0.0184 -0.0536)
OKLCH	oklch(30.29% 0.057 251)
XYZ	xyz(2.6459, 2.7902, 6.8764)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17304A #4A3117

analogous

#174A4A #17304A #18174A

triadic

#17304A #4A1730 #304A17

tetradic

#17304A #4A174A #4A3117 #174A18

square

#17304A #4A174A #4A3117 #174A18

split-complementary

#17304A #4A1817 #4A4A17

monochromatic

#070F17 #08121B #17304A #264E79 #346DA7

Accessibility & contrast

On white

13.48

#17304A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#17304A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17304A

13.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17304A	#FFFFFF	#000000	##FFFFFF
##17304A	1.00	13.48	1.56	13.48
#FFFFFF	13.48	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25314B

Deuteranopia (green-blind)

#1E2C49

Tritanopia (blue-blind)

#003639

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #17304a;
/* rgb */ color: rgb(23, 48, 74);
/* oklch */ color: oklch(30.3% 0.057 251.0);

Tailwind

colors: {
  custom: {
    50: '#5a687c',
    500: '#17304a',
    950: '#000000',
  },
}

SCSS

$custom: #17304a;
$custom-light: #5a687c;
$custom-dark: #000000;

JSON

{
  "hex": "#17304a",
  "rgb": {
    "r": 23,
    "g": 48,
    "b": 74
  },
  "hsl": {
    "h": 210.588,
    "s": 52.577,
    "l": 19.02
  },
  "oklch": {
    "l": 0.30288,
    "c": 0.0567,
    "h": 251
  },
  "luminance": 0.0279
}

Semantic roles & 50–950 ramp

primary

#17304A

secondary

#815F3C

accent

#954CDC

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040609

muted

#797A7B

Preview Lab

Preview with #17304A

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

Preview Lab → · Contrast checker → · Palette generator →