#17497D#17497D

#17497D is a dark, moderate cyan. Relative luminance 0.064; OKLCH L 40.1% C 0.102 H 252.6°. Best body text is #FFFFFF at 9.19:1 contrast (WCAG AA passes).

Color values

HEX	#17497D
RGB	rgb(23, 73, 125)
HSL	hsl(211, 69%, 29%)
HSV	hsv(211, 82%, 49%)
CMYK	cmyk(81.6%, 41.6%, 0%, 51%)
CIE-LAB	lab(30.47, 3.52, -34.14)
CIE-LCH	lch(30.47, 34.32, 275.88°)
OKLab	oklab(40.11% -0.0305 -0.0976)
OKLCH	oklch(40.11% 0.102 252.6)
XYZ	xyz(6.4362, 6.4271, 20.2994)
Luminance	0.0643 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17497D #7D4B17

analogous

#177C7D #17497D #18177D

triadic

#17497D #7D1749 #497D17

tetradic

#17497D #7D177C #7D4B17 #177D18

square

#17497D #7D177C #7D4B17 #177D18

split-complementary

#17497D #7D1817 #7C7D17

monochromatic

#050F1A #0D2B49 #17497D #2167B1 #3586DA

Accessibility & contrast

On white

9.19

#17497D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#17497D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17497D

9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17497D	#FFFFFF	#000000	##FFFFFF
##17497D	1.00	9.19	2.29	9.19
#FFFFFF	9.19	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304D7F

Deuteranopia (green-blind)

#1F437C

Tritanopia (blue-blind)

#00555D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #17497d;
/* rgb */ color: rgb(23, 73, 125);
/* oklch */ color: oklch(40.1% 0.102 252.6);

Tailwind

colors: {
  custom: {
    50: '#657ba3',
    500: '#17497d',
    950: '#000000',
  },
}

SCSS

$custom: #17497d;
$custom-light: #657ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#17497d",
  "rgb": {
    "r": 23,
    "g": 73,
    "b": 125
  },
  "hsl": {
    "h": 210.588,
    "s": 68.919,
    "l": 29.02
  },
  "oklch": {
    "l": 0.40109,
    "c": 0.10221,
    "h": 252.6
  },
  "luminance": 0.06428
}

Semantic roles & 50–950 ramp

primary

#17497D

secondary

#B2793E

accent

#963CEC

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#06090F

muted

#7A7B7F

Preview Lab

Preview with #17497D

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

Preview Lab → · Contrast checker → · Palette generator →