#17303E#17303E

#17303E is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.6% C 0.040 H 234.9°. Best body text is #FFFFFF at 13.74:1 contrast (WCAG AA passes).

Color values

HEX	#17303E
RGB	rgb(23, 48, 62)
HSL	hsl(202, 46%, 17%)
HSV	hsv(202, 63%, 24%)
CMYK	cmyk(62.9%, 22.6%, 0%, 75.7%)
CIE-LAB	lab(18.56, -4.76, -11.78)
CIE-LCH	lch(18.56, 12.71, 248.01°)
OKLab	oklab(29.59% -0.0231 -0.0329)
OKLCH	oklch(29.59% 0.04 234.9)
XYZ	xyz(2.2795, 2.6437, 4.9466)
Luminance	0.0264 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17303E #3E2517

analogous

#173E39 #17303E #171D3E

triadic

#17303E #3E1730 #303E17

tetradic

#17303E #39173E #3E2517 #1D3E17

square

#17303E #39173E #3E2517 #1D3E17

split-complementary

#17303E #3E171D #3E3917

monochromatic

#081116 #081116 #17303E #28536B #387597

Accessibility & contrast

On white

13.74

#17303E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#17303E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17303E

13.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17303E	#FFFFFF	#000000	##FFFFFF
##17303E	1.00	13.74	1.53	13.74
#FFFFFF	13.74	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29303F

Deuteranopia (green-blind)

#242B3E

Tritanopia (blue-blind)

#003435

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #17303e;
/* rgb */ color: rgb(23, 48, 62);
/* oklch */ color: oklch(29.6% 0.040 234.9);

Tailwind

colors: {
  custom: {
    50: '#586873',
    500: '#17303e',
    950: '#000000',
  },
}

SCSS

$custom: #17303e;
$custom-light: #586873;
$custom-dark: #000000;

JSON

{
  "hex": "#17303e",
  "rgb": {
    "r": 23,
    "g": 48,
    "b": 62
  },
  "hsl": {
    "h": 201.538,
    "s": 45.882,
    "l": 16.667
  },
  "oklch": {
    "l": 0.29586,
    "c": 0.04017,
    "h": 234.9
  },
  "luminance": 0.02644
}

Semantic roles & 50–950 ramp

primary

#17303E

secondary

#75503C

accent

#8152D6

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030608

muted

#787A7B

Preview Lab

Preview with #17303E

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

Preview Lab → · Contrast checker → · Palette generator →