#17307E#17307E

#17307E is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.4% C 0.136 H 265.8°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#17307E
RGB	rgb(23, 48, 126)
HSL	hsl(225, 69%, 29%)
HSV	hsv(225, 82%, 49%)
CMYK	cmyk(81.7%, 61.9%, 0%, 50.6%)
CIE-LAB	lab(23.01, 21.38, -46.81)
CIE-LCH	lch(23.01, 51.46, 294.55°)
OKLab	oklab(34.43% -0.0099 -0.1353)
OKLCH	oklch(34.43% 0.136 265.8)
XYZ	xyz(5.1749, 3.8018, 20.1957)
Luminance	0.0380 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17307E #7E6517

analogous

#17647E #17307E #32177E

triadic

#17307E #7E1730 #307E17

tetradic

#17307E #7E1764 #7E6517 #177E32

square

#17307E #7E1764 #7E6517 #177E32

split-complementary

#17307E #7E3217 #647E17

monochromatic

#050A1A #0E1C4A #17307E #2044B2 #355DDA

Accessibility & contrast

On white

11.93

#17307E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#17307E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17307E

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17307E	#FFFFFF	#000000	##FFFFFF
##17307E	1.00	11.93	1.76	11.93
#FFFFFF	11.93	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C81

Deuteranopia (green-blind)

#00327C

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #17307e;
/* rgb */ color: rgb(23, 48, 126);
/* oklch */ color: oklch(34.4% 0.136 265.8);

Tailwind

colors: {
  custom: {
    50: '#6767a4',
    500: '#17307e',
    950: '#000000',
  },
}

SCSS

$custom: #17307e;
$custom-light: #6767a4;
$custom-dark: #000000;

JSON

{
  "hex": "#17307e",
  "rgb": {
    "r": 23,
    "g": 48,
    "b": 126
  },
  "hsl": {
    "h": 225.437,
    "s": 69.128,
    "l": 29.216
  },
  "oklch": {
    "l": 0.34426,
    "c": 0.13566,
    "h": 265.8
  },
  "luminance": 0.03802
}

Semantic roles & 50–950 ramp

primary

#17307E

secondary

#B3963E

accent

#C13CEC

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #17307E

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

Preview Lab → · Contrast checker → · Palette generator →