#17337F#17337F

#17337F is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.2% C 0.133 H 264.9°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#17337F
RGB	rgb(23, 51, 127)
HSL	hsl(224, 69%, 29%)
HSV	hsv(224, 82%, 50%)
CMYK	cmyk(81.9%, 59.8%, 0%, 50.2%)
CIE-LAB	lab(23.94, 19.67, -45.92)
CIE-LCH	lch(23.94, 49.95, 293.19°)
OKLab	oklab(35.15% -0.0119 -0.1326)
OKLCH	oklch(35.15% 0.133 264.9)
XYZ	xyz(5.3666, 4.0815, 20.5795)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17337F #7F6317

analogous

#17677F #17337F #2F177F

triadic

#17337F #7F1733 #337F17

tetradic

#17337F #7F1767 #7F6317 #177F2F

square

#17337F #7F1767 #7F6317 #177F2F

split-complementary

#17337F #7F2F17 #677F17

monochromatic

#050A1A #0E1E4B #17337F #2048B3 #3662DB

Accessibility & contrast

On white

11.56

#17337F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#17337F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17337F

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17337F	#FFFFFF	#000000	##FFFFFF
##17337F	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E82

Deuteranopia (green-blind)

#00347E

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #17337f;
/* rgb */ color: rgb(23, 51, 127);
/* oklch */ color: oklch(35.2% 0.133 264.9);

Tailwind

colors: {
  custom: {
    50: '#676aa5',
    500: '#17337f',
    950: '#000000',
  },
}

SCSS

$custom: #17337f;
$custom-light: #676aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#17337f",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 127
  },
  "hsl": {
    "h": 223.846,
    "s": 69.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.35152,
    "c": 0.13318,
    "h": 264.9
  },
  "luminance": 0.04082
}

Semantic roles & 50–950 ramp

primary

#17337F

secondary

#B4943E

accent

#BD3CEC

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #17337F

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

Preview Lab → · Contrast checker → · Palette generator →