#17598B#17598B

#17598B is a dark, moderate cyan. Relative luminance 0.092; OKLCH L 45.0% C 0.104 H 246.4°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#17598B
RGB	rgb(23, 89, 139)
HSL	hsl(206, 72%, 32%)
HSV	hsv(206, 83%, 55%)
CMYK	cmyk(83.5%, 36%, 0%, 45.5%)
CIE-LAB	lab(36.35, -1.30, -33.41)
CIE-LCH	lch(36.35, 33.44, 267.76°)
OKLab	oklab(44.99% -0.0415 -0.0951)
OKLCH	oklch(44.99% 0.104 246.4)
XYZ	xyz(8.5841, 9.1899, 25.7425)
Luminance	0.0919 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17598B #8B4917

analogous

#178B83 #17598B #171F8B

triadic

#17598B #8B1759 #598B17

tetradic

#17598B #83178B #8B4917 #1F8B17

square

#17598B #83178B #8B4917 #1F8B17

split-complementary

#17598B #8B171F #8B8317

monochromatic

#061622 #0E3756 #17598B #207BC0 #3D99DF

Accessibility & contrast

On white

7.40

#17598B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#17598B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17598B

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17598B	#FFFFFF	#000000	##FFFFFF
##17598B	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415B8D

Deuteranopia (green-blind)

#31518A

Tritanopia (blue-blind)

#00656B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #17598b;
/* rgb */ color: rgb(23, 89, 139);
/* oklch */ color: oklch(45.0% 0.104 246.4);

Tailwind

colors: {
  custom: {
    50: '#6987ad',
    500: '#17598b',
    950: '#000000',
  },
}

SCSS

$custom: #17598b;
$custom-light: #6987ad;
$custom-dark: #000000;

JSON

{
  "hex": "#17598b",
  "rgb": {
    "r": 23,
    "g": 89,
    "b": 139
  },
  "hsl": {
    "h": 205.862,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.44987,
    "c": 0.10378,
    "h": 246.4
  },
  "luminance": 0.09191
}

Semantic roles & 50–950 ramp

primary

#17598B

secondary

#BF763F

accent

#8739EE

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #17598B

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

Preview Lab → · Contrast checker → · Palette generator →