#17353B#17353B

#17353B is a dark, muted cyan. Relative luminance 0.030; OKLCH L 30.9% C 0.037 H 212.3°. Best body text is #FFFFFF at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#17353B
RGB	rgb(23, 53, 59)
HSL	hsl(190, 44%, 16%)
HSV	hsv(190, 61%, 23%)
CMYK	cmyk(61%, 10.2%, 0%, 76.9%)
CIE-LAB	lab(20.22, -9.11, -7.20)
CIE-LCH	lch(20.22, 11.61, 218.30°)
OKLab	oklab(30.87% -0.0315 -0.0199)
OKLCH	oklch(30.87% 0.037 212.3)
XYZ	xyz(2.4156, 3.0439, 4.5971)
Luminance	0.0304 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17353B #3B1D17

analogous

#173B2F #17353B #17233B

triadic

#17353B #3B1735 #353B17

tetradic

#17353B #2F173B #3B1D17 #233B17

square

#17353B #2F173B #3B1D17 #233B17

split-complementary

#17353B #3B1723 #3B2F17

monochromatic

#091416 #091416 #17353B #285D67 #398493

Accessibility & contrast

On white

13.05

#17353B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#17353B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17353B

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17353B	#FFFFFF	#000000	##FFFFFF
##17353B	1.00	13.05	1.61	13.05
#FFFFFF	13.05	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#30333B

Deuteranopia (green-blind)

#2B2F3B

Tritanopia (blue-blind)

#013837

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #17353b;
/* rgb */ color: rgb(23, 53, 59);
/* oklch */ color: oklch(30.9% 0.037 212.3);

Tailwind

colors: {
  custom: {
    50: '#586c70',
    500: '#17353b',
    950: '#000000',
  },
}

SCSS

$custom: #17353b;
$custom-light: #586c70;
$custom-dark: #000000;

JSON

{
  "hex": "#17353b",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 59
  },
  "hsl": {
    "h": 190,
    "s": 43.902,
    "l": 16.078
  },
  "oklch": {
    "l": 0.30869,
    "c": 0.03724,
    "h": 212.3
  },
  "luminance": 0.03044
}

Semantic roles & 50–950 ramp

primary

#17353B

secondary

#72453C

accent

#6954D4

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030707

muted

#787A7A

Preview Lab

Preview with #17353B

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

Preview Lab → · Contrast checker → · Palette generator →