#17499E#17499E

#17499E is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.6% C 0.148 H 260.5°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#17499E
RGB	rgb(23, 73, 158)
HSL	hsl(218, 75%, 35%)
HSV	hsv(218, 85%, 62%)
CMYK	cmyk(85.4%, 53.8%, 0%, 38%)
CIE-LAB	lab(32.73, 17.04, -50.73)
CIE-LCH	lch(32.73, 53.51, 288.56°)
OKLab	oklab(42.58% -0.0245 -0.1464)
OKLCH	oklch(42.58% 0.148 260.5)
XYZ	xyz(8.9052, 7.4148, 33.3030)
Luminance	0.0742 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17499E #9E6C17

analogous

#178C9E #17499E #29179E

triadic

#17499E #9E1749 #499E17

tetradic

#17499E #9E178C #9E6C17 #179E29

square

#17499E #9E178C #9E6C17 #179E29

split-complementary

#17499E #9E2917 #8C9E17

monochromatic

#071833 #0F3069 #17499E #1F62D3 #4B84E5

Accessibility & contrast

On white

8.46

#17499E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#17499E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17499E

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17499E	#FFFFFF	#000000	##FFFFFF
##17499E	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0553A1

Deuteranopia (green-blind)

#00479C

Tritanopia (blue-blind)

#005E6C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #17499e;
/* rgb */ color: rgb(23, 73, 158);
/* oklch */ color: oklch(42.6% 0.148 260.5);

Tailwind

colors: {
  custom: {
    50: '#6e7bbb',
    500: '#17499e',
    950: '#000000',
  },
}

SCSS

$custom: #17499e;
$custom-light: #6e7bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#17499e",
  "rgb": {
    "r": 23,
    "g": 73,
    "b": 158
  },
  "hsl": {
    "h": 217.778,
    "s": 74.586,
    "l": 35.49
  },
  "oklch": {
    "l": 0.42582,
    "c": 0.1484,
    "h": 260.5
  },
  "luminance": 0.07416
}

Semantic roles & 50–950 ramp

primary

#17499E

secondary

#C6984A

accent

#AC37F1

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080912

muted

#7B7B81

Preview Lab

Preview with #17499E

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

Preview Lab → · Contrast checker → · Palette generator →