#17337E#17337E

#17337E is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.1% C 0.132 H 264.8°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#17337E
RGB	rgb(23, 51, 126)
HSL	hsl(224, 69%, 29%)
HSV	hsv(224, 82%, 49%)
CMYK	cmyk(81.7%, 59.5%, 0%, 50.6%)
CIE-LAB	lab(23.85, 19.26, -45.42)
CIE-LCH	lch(23.85, 49.34, 292.97°)
OKLab	oklab(35.06% -0.012 -0.1312)
OKLCH	oklch(35.06% 0.132 264.8)
XYZ	xyz(5.3017, 4.0556, 20.2380)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17337E #7E6217

analogous

#17677E #17337E #2E177E

triadic

#17337E #7E1733 #337E17

tetradic

#17337E #7E1767 #7E6217 #177E2E

square

#17337E #7E1767 #7E6217 #177E2E

split-complementary

#17337E #7E2E17 #677E17

monochromatic

#050A1A #0E1E4A #17337E #2048B2 #3562DA

Accessibility & contrast

On white

11.59

#17337E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#17337E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17337E

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17337E	#FFFFFF	#000000	##FFFFFF
##17337E	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E81

Deuteranopia (green-blind)

#00347D

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #17337e;
/* rgb */ color: rgb(23, 51, 126);
/* oklch */ color: oklch(35.1% 0.132 264.8);

Tailwind

colors: {
  custom: {
    50: '#676aa4',
    500: '#17337e',
    950: '#000000',
  },
}

SCSS

$custom: #17337e;
$custom-light: #676aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#17337e",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 126
  },
  "hsl": {
    "h": 223.689,
    "s": 69.128,
    "l": 29.216
  },
  "oklch": {
    "l": 0.35062,
    "c": 0.13174,
    "h": 264.8
  },
  "luminance": 0.04056
}

Semantic roles & 50–950 ramp

primary

#17337E

secondary

#B3933E

accent

#BC3CEC

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #17337E

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

Preview Lab → · Contrast checker → · Palette generator →