#17455B#17455B

#17455B is a dark, moderate cyan. Relative luminance 0.052; OKLCH L 37.0% C 0.062 H 232.8°. Best body text is #FFFFFF at 10.30:1 contrast (WCAG AA passes).

Color values

HEX	#17455B
RGB	rgb(23, 69, 91)
HSL	hsl(199, 60%, 22%)
HSV	hsv(199, 75%, 36%)
CMYK	cmyk(74.7%, 24.2%, 0%, 64.3%)
CIE-LAB	lab(27.28, -7.43, -17.58)
CIE-LCH	lch(27.28, 19.09, 247.08°)
OKLab	oklab(36.98% -0.0374 -0.0494)
OKLCH	oklch(36.98% 0.062 232.8)
XYZ	xyz(4.3691, 5.1932, 10.6676)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17455B #5B2D17

analogous

#175B4F #17455B #17235B

triadic

#17455B #5B1745 #455B17

tetradic

#17455B #4F175B #5B2D17 #235B17

square

#17455B #4F175B #5B2D17 #235B17

split-complementary

#17455B #5B1723 #5B4F17

monochromatic

#061318 #0B202A #17455B #236A8C #308FBD

Accessibility & contrast

On white

10.30

#17455B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#17455B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17455B

10.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17455B	#FFFFFF	#000000	##FFFFFF
##17455B	1.00	10.30	2.04	10.30
#FFFFFF	10.30	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A445C

Deuteranopia (green-blind)

#313D5B

Tritanopia (blue-blind)

#004B4C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #17455b;
/* rgb */ color: rgb(23, 69, 91);
/* oklch */ color: oklch(37.0% 0.062 232.8);

Tailwind

colors: {
  custom: {
    50: '#5e7889',
    500: '#17455b',
    950: '#000000',
  },
}

SCSS

$custom: #17455b;
$custom-light: #5e7889;
$custom-dark: #000000;

JSON

{
  "hex": "#17455b",
  "rgb": {
    "r": 23,
    "g": 69,
    "b": 91
  },
  "hsl": {
    "h": 199.412,
    "s": 59.649,
    "l": 22.353
  },
  "oklch": {
    "l": 0.36984,
    "c": 0.06196,
    "h": 232.8
  },
  "luminance": 0.05194
}

Semantic roles & 50–950 ramp

primary

#17455B

secondary

#92583C

accent

#7845E3

background

#F5F7F8

surface

#E9EDF0

border

#C5C8CB

text

#05090B

muted

#797B7C

Preview Lab

Preview with #17455B

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

Preview Lab → · Contrast checker → · Palette generator →