#17778B#17778B

#17778B is a mid, moderate cyan. Relative luminance 0.152; OKLCH L 52.7% C 0.088 H 216.0°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#17778B
RGB	rgb(23, 119, 139)
HSL	hsl(190, 72%, 32%)
HSV	hsv(190, 83%, 55%)
CMYK	cmyk(83.5%, 14.4%, 0%, 45.5%)
CIE-LAB	lab(45.96, -18.99, -18.44)
CIE-LCH	lch(45.96, 26.47, 224.15°)
OKLab	oklab(52.65% -0.0708 -0.0515)
OKLCH	oklch(52.65% 0.088 216)
XYZ	xyz(11.6084, 15.2384, 26.7506)
Luminance	0.1524 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17778B #8B2B17

analogous

#178B65 #17778B #173D8B

triadic

#17778B #8B1777 #778B17

tetradic

#17778B #65178B #8B2B17 #3D8B17

square

#17778B #65178B #8B2B17 #3D8B17

split-complementary

#17778B #8B173D #8B6517

monochromatic

#061D22 #0E4A56 #17778B #20A4C0 #3DC3DF

Accessibility & contrast

On white

5.19

#17778B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#17778B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #17778B

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17778B	#FFFFFF	#000000	##FFFFFF
##17778B	1.00	5.19	4.05	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#69738C

Deuteranopia (green-blind)

#5A688B

Tritanopia (blue-blind)

#007E7D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #17778b;
/* rgb */ color: rgb(23, 119, 139);
/* oklch */ color: oklch(52.7% 0.088 216.0);

Tailwind

colors: {
  custom: {
    50: '#6b9ead',
    500: '#17778b',
    950: '#000000',
  },
}

SCSS

$custom: #17778b;
$custom-light: #6b9ead;
$custom-dark: #000000;

JSON

{
  "hex": "#17778b",
  "rgb": {
    "r": 23,
    "g": 119,
    "b": 139
  },
  "hsl": {
    "h": 190.345,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.52654,
    "c": 0.08757,
    "h": 216
  },
  "luminance": 0.1524
}

Semantic roles & 50–950 ramp

primary

#17778B

secondary

#BF553F

accent

#5939EE

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#080E10

muted

#7A7E7F

Preview Lab

Preview with #17778B

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

Preview Lab → · Contrast checker → · Palette generator →