#17637B#17637B

#17637B is a mid, moderate cyan. Relative luminance 0.105; OKLCH L 46.7% C 0.080 H 224.3°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#17637B
RGB	rgb(23, 99, 123)
HSL	hsl(194, 68%, 29%)
HSV	hsv(194, 81%, 48%)
CMYK	cmyk(81.3%, 19.5%, 0%, 51.8%)
CIE-LAB	lab(38.79, -13.53, -19.85)
CIE-LCH	lch(38.79, 24.02, 235.72°)
OKLab	oklab(46.67% -0.0571 -0.0557)
OKLCH	oklch(46.67% 0.08 224.3)
XYZ	xyz(8.3889, 10.5349, 20.3264)
Luminance	0.1054 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17637B #7B2F17

analogous

#177B61 #17637B #17317B

triadic

#17637B #7B1763 #637B17

tetradic

#17637B #61177B #7B2F17 #317B17

square

#17637B #61177B #7B2F17 #317B17

split-complementary

#17637B #7B1731 #7B6117

monochromatic

#05151A #0D3947 #17637B #218CAF #33B1D9

Accessibility & contrast

On white

6.76

#17637B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#17637B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #17637B

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17637B	#FFFFFF	#000000	##FFFFFF
##17637B	1.00	6.76	3.11	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#56617C

Deuteranopia (green-blind)

#48577B

Tritanopia (blue-blind)

#006A6B

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #17637b;
/* rgb */ color: rgb(23, 99, 123);
/* oklch */ color: oklch(46.7% 0.080 224.3);

Tailwind

colors: {
  custom: {
    50: '#668fa1',
    500: '#17637b',
    950: '#000000',
  },
}

SCSS

$custom: #17637b;
$custom-light: #668fa1;
$custom-dark: #000000;

JSON

{
  "hex": "#17637b",
  "rgb": {
    "r": 23,
    "g": 99,
    "b": 123
  },
  "hsl": {
    "h": 194.4,
    "s": 68.493,
    "l": 28.627
  },
  "oklch": {
    "l": 0.46667,
    "c": 0.07973,
    "h": 224.3
  },
  "luminance": 0.10536
}

Semantic roles & 50–950 ramp

primary

#17637B

secondary

#B0593E

accent

#663CEB

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070C0F

muted

#7A7D7E

Preview Lab

Preview with #17637B

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

Preview Lab → · Contrast checker → · Palette generator →