#17304E#17304E

#17304E is a dark, moderate cyan. Relative luminance 0.028; OKLCH L 30.5% C 0.063 H 254.2°. Best body text is #FFFFFF at 13.38:1 contrast (WCAG AA passes).

Color values

HEX	#17304E
RGB	rgb(23, 48, 78)
HSL	hsl(213, 54%, 20%)
HSV	hsv(213, 71%, 31%)
CMYK	cmyk(70.5%, 38.5%, 0%, 69.4%)
CIE-LAB	lab(19.42, 1.49, -21.32)
CIE-LCH	lch(19.42, 21.37, 274.00°)
OKLab	oklab(30.55% -0.0171 -0.0604)
OKLCH	oklch(30.55% 0.063 254.2)
XYZ	xyz(2.7849, 2.8459, 7.6088)
Luminance	0.0285 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17304E #4E3517

analogous

#174C4E #17304E #1A174E

triadic

#17304E #4E1730 #304E17

tetradic

#17304E #4E174C #4E3517 #174E1A

square

#17304E #4E174C #4E3517 #174E1A

split-complementary

#17304E #4E1A17 #4C4E17

monochromatic

#070F18 #09131F #17304E #254D7D #336AAD

Accessibility & contrast

On white

13.38

#17304E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#17304E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17304E

13.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17304E	#FFFFFF	#000000	##FFFFFF
##17304E	1.00	13.38	1.57	13.38
#FFFFFF	13.38	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23324F

Deuteranopia (green-blind)

#1B2D4D

Tritanopia (blue-blind)

#00373B

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #17304e;
/* rgb */ color: rgb(23, 48, 78);
/* oklch */ color: oklch(30.5% 0.063 254.2);

Tailwind

colors: {
  custom: {
    50: '#5b687f',
    500: '#17304e',
    950: '#000000',
  },
}

SCSS

$custom: #17304e;
$custom-light: #5b687f;
$custom-dark: #000000;

JSON

{
  "hex": "#17304e",
  "rgb": {
    "r": 23,
    "g": 48,
    "b": 78
  },
  "hsl": {
    "h": 212.727,
    "s": 54.455,
    "l": 19.804
  },
  "oklch": {
    "l": 0.30546,
    "c": 0.0628,
    "h": 254.2
  },
  "luminance": 0.02846
}

Semantic roles & 50–950 ramp

primary

#17304E

secondary

#85643C

accent

#9B4ADE

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #17304E

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

Preview Lab → · Contrast checker → · Palette generator →