#17304F#17304F

#17304F is a dark, moderate cyan. Relative luminance 0.029; OKLCH L 30.6% C 0.064 H 254.8°. Best body text is #FFFFFF at 13.36:1 contrast (WCAG AA passes).

Color values

HEX	#17304F
RGB	rgb(23, 48, 79)
HSL	hsl(213, 55%, 20%)
HSV	hsv(213, 71%, 31%)
CMYK	cmyk(70.9%, 39.2%, 0%, 69%)
CIE-LAB	lab(19.48, 1.90, -21.89)
CIE-LCH	lch(19.48, 21.98, 274.95°)
OKLab	oklab(30.61% -0.0168 -0.0621)
OKLCH	oklch(30.61% 0.064 254.8)
XYZ	xyz(2.8211, 2.8603, 7.7990)
Luminance	0.0286 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17304F #4F3617

analogous

#174C4F #17304F #1A174F

triadic

#17304F #4F1730 #304F17

tetradic

#17304F #4F174C #4F3617 #174F1A

square

#17304F #4F174C #4F3617 #174F1A

split-complementary

#17304F #4F1A17 #4C4F17

monochromatic

#070E18 #091320 #17304F #254D7E #336AAE

Accessibility & contrast

On white

13.36

#17304F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#17304F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17304F

13.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17304F	#FFFFFF	#000000	##FFFFFF
##17304F	1.00	13.36	1.57	13.36
#FFFFFF	13.36	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#223250

Deuteranopia (green-blind)

#1B2D4E

Tritanopia (blue-blind)

#00373B

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #17304f;
/* rgb */ color: rgb(23, 48, 79);
/* oklch */ color: oklch(30.6% 0.064 254.8);

Tailwind

colors: {
  custom: {
    50: '#5b6880',
    500: '#17304f',
    950: '#000000',
  },
}

SCSS

$custom: #17304f;
$custom-light: #5b6880;
$custom-dark: #000000;

JSON

{
  "hex": "#17304f",
  "rgb": {
    "r": 23,
    "g": 48,
    "b": 79
  },
  "hsl": {
    "h": 213.214,
    "s": 54.902,
    "l": 20
  },
  "oklch": {
    "l": 0.30612,
    "c": 0.06435,
    "h": 254.8
  },
  "luminance": 0.02861
}

Semantic roles & 50–950 ramp

primary

#17304F

secondary

#86653C

accent

#9C4ADE

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #17304F

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

Preview Lab → · Contrast checker → · Palette generator →