#17497B#17497B

#17497B is a dark, moderate cyan. Relative luminance 0.064; OKLCH L 40.0% C 0.099 H 251.8°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#17497B
RGB	rgb(23, 73, 123)
HSL	hsl(210, 68%, 29%)
HSV	hsv(210, 81%, 48%)
CMYK	cmyk(81.3%, 40.7%, 0%, 51.8%)
CIE-LAB	lab(30.34, 2.70, -33.09)
CIE-LCH	lch(30.34, 33.20, 274.66°)
OKLab	oklab(39.97% -0.031 -0.0945)
OKLCH	oklch(39.97% 0.099 251.8)
XYZ	xyz(6.3097, 6.3766, 19.6333)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17497B #7B4917

analogous

#177B7B #17497B #17177B

triadic

#17497B #7B1749 #497B17

tetradic

#17497B #7B177B #7B4917 #177B17

square

#17497B #7B177B #7B4917 #177B17

split-complementary

#17497B #7B1717 #7B7B17

monochromatic

#050F1A #0D2A47 #17497B #2168AF #3386D9

Accessibility & contrast

On white

9.23

#17497B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#17497B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17497B

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17497B	#FFFFFF	#000000	##FFFFFF
##17497B	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314C7D

Deuteranopia (green-blind)

#21437A

Tritanopia (blue-blind)

#00555C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #17497b;
/* rgb */ color: rgb(23, 73, 123);
/* oklch */ color: oklch(40.0% 0.099 251.8);

Tailwind

colors: {
  custom: {
    50: '#657ba1',
    500: '#17497b',
    950: '#000000',
  },
}

SCSS

$custom: #17497b;
$custom-light: #657ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#17497b",
  "rgb": {
    "r": 23,
    "g": 73,
    "b": 123
  },
  "hsl": {
    "h": 210,
    "s": 68.493,
    "l": 28.627
  },
  "oklch": {
    "l": 0.39974,
    "c": 0.09943,
    "h": 251.8
  },
  "luminance": 0.06377
}

Semantic roles & 50–950 ramp

primary

#17497B

secondary

#B0773E

accent

#943CEB

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06090F

muted

#7A7B7E

Preview Lab

Preview with #17497B

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

Preview Lab → · Contrast checker → · Palette generator →