#17347B#17347B

#17347B is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.0% C 0.126 H 264.1°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#17347B
RGB	rgb(23, 52, 123)
HSL	hsl(223, 68%, 29%)
HSV	hsv(223, 81%, 48%)
CMYK	cmyk(81.3%, 57.7%, 0%, 51.8%)
CIE-LAB	lab(23.89, 17.31, -43.47)
CIE-LCH	lch(23.89, 46.79, 291.72°)
OKLab	oklab(35.01% -0.0129 -0.1254)
OKLCH	oklch(35.01% 0.126 264.1)
XYZ	xyz(5.1552, 4.0676, 19.2485)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17347B #7B5E17

analogous

#17667B #17347B #2C177B

triadic

#17347B #7B1734 #347B17

tetradic

#17347B #7B1766 #7B5E17 #177B2C

square

#17347B #7B1766 #7B5E17 #177B2C

split-complementary

#17347B #7B2C17 #667B17

monochromatic

#050B1A #0D1E47 #17347B #214AAF #3363D9

Accessibility & contrast

On white

11.58

#17347B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#17347B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17347B

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17347B	#FFFFFF	#000000	##FFFFFF
##17347B	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7D

Deuteranopia (green-blind)

#00347A

Tritanopia (blue-blind)

#004652

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #17347b;
/* rgb */ color: rgb(23, 52, 123);
/* oklch */ color: oklch(35.0% 0.126 264.1);

Tailwind

colors: {
  custom: {
    50: '#666aa2',
    500: '#17347b',
    950: '#000000',
  },
}

SCSS

$custom: #17347b;
$custom-light: #666aa2;
$custom-dark: #000000;

JSON

{
  "hex": "#17347b",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 123
  },
  "hsl": {
    "h": 222.6,
    "s": 68.493,
    "l": 28.627
  },
  "oklch": {
    "l": 0.35013,
    "c": 0.12608,
    "h": 264.1
  },
  "luminance": 0.04068
}

Semantic roles & 50–950 ramp

primary

#17347B

secondary

#B08F3E

accent

#B93CEB

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #17347B

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

Preview Lab → · Contrast checker → · Palette generator →