#17307C#17307C

#17307C is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.2% C 0.133 H 265.7°. Best body text is #FFFFFF at 12.00:1 contrast (WCAG AA passes).

Color values

HEX	#17307C
RGB	rgb(23, 48, 124)
HSL	hsl(225, 69%, 29%)
HSV	hsv(225, 81%, 49%)
CMYK	cmyk(81.5%, 61.3%, 0%, 51.4%)
CIE-LAB	lab(22.83, 20.57, -45.83)
CIE-LCH	lch(22.83, 50.23, 294.17°)
OKLab	oklab(34.24% -0.01 -0.1324)
OKLCH	oklch(34.24% 0.133 265.7)
XYZ	xyz(5.0471, 3.7507, 19.5228)
Luminance	0.0375 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17307C #7C6317

analogous

#17637C #17307C #31177C

triadic

#17307C #7C1730 #307C17

tetradic

#17307C #7C1763 #7C6317 #177C31

square

#17307C #7C1763 #7C6317 #177C31

split-complementary

#17307C #7C3117 #637C17

monochromatic

#050A1A #0D1C48 #17307C #2144B0 #345DD9

Accessibility & contrast

On white

12.00

#17307C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#17307C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17307C

12.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17307C	#FFFFFF	#000000	##FFFFFF
##17307C	1.00	12.00	1.75	12.00
#FFFFFF	12.00	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B7F

Deuteranopia (green-blind)

#00327B

Tritanopia (blue-blind)

#004351

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #17307c;
/* rgb */ color: rgb(23, 48, 124);
/* oklch */ color: oklch(34.2% 0.133 265.7);

Tailwind

colors: {
  custom: {
    50: '#6667a3',
    500: '#17307c',
    950: '#000000',
  },
}

SCSS

$custom: #17307c;
$custom-light: #6667a3;
$custom-dark: #000000;

JSON

{
  "hex": "#17307c",
  "rgb": {
    "r": 23,
    "g": 48,
    "b": 124
  },
  "hsl": {
    "h": 225.149,
    "s": 68.707,
    "l": 28.824
  },
  "oklch": {
    "l": 0.3424,
    "c": 0.1328,
    "h": 265.7
  },
  "luminance": 0.03751
}

Semantic roles & 50–950 ramp

primary

#17307C

secondary

#B1943E

accent

#C03CEC

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #17307C

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

Preview Lab → · Contrast checker → · Palette generator →