#17283F#17283F

#17283F is a dark, muted cyan. Relative luminance 0.021; OKLCH L 27.4% C 0.049 H 256.3°. Best body text is #FFFFFF at 14.87:1 contrast (WCAG AA passes).

Color values

HEX	#17283F
RGB	rgb(23, 40, 63)
HSL	hsl(215, 47%, 17%)
HSV	hsv(215, 63%, 25%)
CMYK	cmyk(63.5%, 36.5%, 0%, 75.3%)
CIE-LAB	lab(15.79, 1.21, -16.77)
CIE-LCH	lch(15.79, 16.82, 274.14°)
OKLab	oklab(27.43% -0.0115 -0.0473)
OKLCH	oklch(27.43% 0.049 256.3)
XYZ	xyz(2.0090, 2.0585, 4.9931)
Luminance	0.0206 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17283F #3F2E17

analogous

#173C3F #17283F #1A173F

triadic

#17283F #3F1728 #283F17

tetradic

#17283F #3F173C #3F2E17 #173F1A

square

#17283F #3F173C #3F2E17 #173F1A

split-complementary

#17283F #3F1A17 #3C3F17

monochromatic

#080E16 #080E16 #17283F #27446C #386199

Accessibility & contrast

On white

14.87

#17283F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#17283F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17283F

14.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17283F	#FFFFFF	#000000	##FFFFFF
##17283F	1.00	14.87	1.41	14.87
#FFFFFF	14.87	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F2940

Deuteranopia (green-blind)

#1A263F

Tritanopia (blue-blind)

#012D30

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #17283f;
/* rgb */ color: rgb(23, 40, 63);
/* oklch */ color: oklch(27.4% 0.049 256.3);

Tailwind

colors: {
  custom: {
    50: '#586174',
    500: '#17283f',
    950: '#000000',
  },
}

SCSS

$custom: #17283f;
$custom-light: #586174;
$custom-dark: #000000;

JSON

{
  "hex": "#17283f",
  "rgb": {
    "r": 23,
    "g": 40,
    "b": 63
  },
  "hsl": {
    "h": 214.5,
    "s": 46.512,
    "l": 16.863
  },
  "oklch": {
    "l": 0.27425,
    "c": 0.04867,
    "h": 256.3
  },
  "luminance": 0.02059
}

Semantic roles & 50–950 ramp

primary

#17283F

secondary

#765D3C

accent

#9E52D6

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030508

muted

#78797B

Preview Lab

Preview with #17283F

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

Preview Lab → · Contrast checker → · Palette generator →