#17304D#17304D

#17304D is a dark, moderate cyan. Relative luminance 0.028; OKLCH L 30.5% C 0.061 H 253.5°. Best body text is #FFFFFF at 13.41:1 contrast (WCAG AA passes).

Color values

HEX	#17304D
RGB	rgb(23, 48, 77)
HSL	hsl(212, 54%, 20%)
HSV	hsv(212, 70%, 30%)
CMYK	cmyk(70.1%, 37.7%, 0%, 69.8%)
CIE-LAB	lab(19.36, 1.09, -20.74)
CIE-LCH	lch(19.36, 20.77, 273.00°)
OKLab	oklab(30.48% -0.0174 -0.0587)
OKLCH	oklch(30.48% 0.061 253.5)
XYZ	xyz(2.7494, 2.8316, 7.4214)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17304D #4D3417

analogous

#174B4D #17304D #19174D

triadic

#17304D #4D1730 #304D17

tetradic

#17304D #4D174B #4D3417 #174D19

square

#17304D #4D174B #4D3417 #174D19

split-complementary

#17304D #4D1917 #4B4D17

monochromatic

#070F18 #09131E #17304D #254D7C #336BAB

Accessibility & contrast

On white

13.41

#17304D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#17304D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17304D

13.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17304D	#FFFFFF	#000000	##FFFFFF
##17304D	1.00	13.41	1.57	13.41
#FFFFFF	13.41	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23324E

Deuteranopia (green-blind)

#1C2D4C

Tritanopia (blue-blind)

#00373B

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #17304d;
/* rgb */ color: rgb(23, 48, 77);
/* oklch */ color: oklch(30.5% 0.061 253.5);

Tailwind

colors: {
  custom: {
    50: '#5a687f',
    500: '#17304d',
    950: '#000000',
  },
}

SCSS

$custom: #17304d;
$custom-light: #5a687f;
$custom-dark: #000000;

JSON

{
  "hex": "#17304d",
  "rgb": {
    "r": 23,
    "g": 48,
    "b": 77
  },
  "hsl": {
    "h": 212.222,
    "s": 54,
    "l": 19.608
  },
  "oklch": {
    "l": 0.3048,
    "c": 0.06126,
    "h": 253.5
  },
  "luminance": 0.02832
}

Semantic roles & 50–950 ramp

primary

#17304D

secondary

#84633C

accent

#994ADD

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #17304D

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

Preview Lab → · Contrast checker → · Palette generator →