#17355A#17355A

#17355A is a dark, moderate cyan. Relative luminance 0.035; OKLCH L 32.7% C 0.075 H 255.0°. Best body text is #FFFFFF at 12.40:1 contrast (WCAG AA passes).

Color values

HEX	#17355A
RGB	rgb(23, 53, 90)
HSL	hsl(213, 59%, 22%)
HSV	hsv(213, 74%, 35%)
CMYK	cmyk(74.4%, 41.1%, 0%, 64.7%)
CIE-LAB	lab(21.82, 2.86, -25.50)
CIE-LCH	lch(21.82, 25.66, 276.41°)
OKLab	oklab(32.66% -0.0195 -0.0726)
OKLCH	oklch(32.66% 0.075 255)
XYZ	xyz(3.4712, 3.4662, 10.1570)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17355A #5A3C17

analogous

#17575A #17355A #1A175A

triadic

#17355A #5A1735 #355A17

tetradic

#17355A #5A1757 #5A3C17 #175A1A

square

#17355A #5A1757 #5A3C17 #175A1A

split-complementary

#17355A #5A1A17 #575A17

monochromatic

#060E18 #0B1829 #17355A #23528B #306EBB

Accessibility & contrast

On white

12.40

#17355A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#17355A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17355A

12.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17355A	#FFFFFF	#000000	##FFFFFF
##17355A	1.00	12.40	1.69	12.40
#FFFFFF	12.40	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24385B

Deuteranopia (green-blind)

#1A3159

Tritanopia (blue-blind)

#003E43

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #17355a;
/* rgb */ color: rgb(23, 53, 90);
/* oklch */ color: oklch(32.7% 0.075 255.0);

Tailwind

colors: {
  custom: {
    50: '#5d6b89',
    500: '#17355a',
    950: '#000000',
  },
}

SCSS

$custom: #17355a;
$custom-light: #5d6b89;
$custom-dark: #000000;

JSON

{
  "hex": "#17355a",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 90
  },
  "hsl": {
    "h": 213.134,
    "s": 59.292,
    "l": 22.157
  },
  "oklch": {
    "l": 0.32662,
    "c": 0.07514,
    "h": 255
  },
  "luminance": 0.03467
}

Semantic roles & 50–950 ramp

primary

#17355A

secondary

#916B3C

accent

#9C45E2

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060B

muted

#797A7C

Preview Lab

Preview with #17355A

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

Preview Lab → · Contrast checker → · Palette generator →