#17347C#17347C

#17347C is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.1% C 0.128 H 264.2°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#17347C
RGB	rgb(23, 52, 124)
HSL	hsl(223, 69%, 29%)
HSV	hsv(223, 81%, 49%)
CMYK	cmyk(81.5%, 58.1%, 0%, 51.4%)
CIE-LAB	lab(23.98, 17.72, -43.96)
CIE-LCH	lch(23.98, 47.40, 291.96°)
OKLab	oklab(35.1% -0.0128 -0.1269)
OKLCH	oklch(35.1% 0.128 264.2)
XYZ	xyz(5.2181, 4.0928, 19.5798)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17347C #7C5F17

analogous

#17677C #17347C #2D177C

triadic

#17347C #7C1734 #347C17

tetradic

#17347C #7C1767 #7C5F17 #177C2D

square

#17347C #7C1767 #7C5F17 #177C2D

split-complementary

#17347C #7C2D17 #677C17

monochromatic

#050B1A #0D1E48 #17347C #214AB0 #3464D9

Accessibility & contrast

On white

11.55

#17347C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#17347C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17347C

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17347C	#FFFFFF	#000000	##FFFFFF
##17347C	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7E

Deuteranopia (green-blind)

#00357B

Tritanopia (blue-blind)

#004652

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #17347c;
/* rgb */ color: rgb(23, 52, 124);
/* oklch */ color: oklch(35.1% 0.128 264.2);

Tailwind

colors: {
  custom: {
    50: '#666aa3',
    500: '#17347c',
    950: '#000000',
  },
}

SCSS

$custom: #17347c;
$custom-light: #666aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#17347c",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 124
  },
  "hsl": {
    "h": 222.772,
    "s": 68.707,
    "l": 28.824
  },
  "oklch": {
    "l": 0.35101,
    "c": 0.12753,
    "h": 264.2
  },
  "luminance": 0.04093
}

Semantic roles & 50–950 ramp

primary

#17347C

secondary

#B1903E

accent

#B93CEC

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #17347C

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

Preview Lab → · Contrast checker → · Palette generator →