#17306D#17306D

#17306D is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.9% C 0.111 H 264.3°. Best body text is #FFFFFF at 12.50:1 contrast (WCAG AA passes).

Color values

HEX	#17306D
RGB	rgb(23, 48, 109)
HSL	hsl(223, 65%, 26%)
HSV	hsv(223, 79%, 43%)
CMYK	cmyk(78.9%, 56%, 0%, 57.3%)
CIE-LAB	lab(21.58, 14.37, -38.28)
CIE-LCH	lch(21.58, 40.88, 290.57°)
OKLab	oklab(32.91% -0.0109 -0.1102)
OKLCH	oklch(32.91% 0.111 264.3)
XYZ	xyz(4.1696, 3.3997, 14.9015)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17306D #6D5417

analogous

#175B6D #17306D #29176D

triadic

#17306D #6D1730 #306D17

tetradic

#17306D #6D175B #6D5417 #176D29

square

#17306D #6D175B #6D5417 #176D29

split-complementary

#17306D #6D2917 #5B6D17

monochromatic

#050B19 #0C1A3A #17306D #2246A0 #2C5DD2

Accessibility & contrast

On white

12.50

#17306D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#17306D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17306D

12.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17306D	#FFFFFF	#000000	##FFFFFF
##17306D	1.00	12.50	1.68	12.50
#FFFFFF	12.50	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#04386F

Deuteranopia (green-blind)

#00306C

Tritanopia (blue-blind)

#003F49

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #17306d;
/* rgb */ color: rgb(23, 48, 109);
/* oklch */ color: oklch(32.9% 0.111 264.3);

Tailwind

colors: {
  custom: {
    50: '#626797',
    500: '#17306d',
    950: '#000000',
  },
}

SCSS

$custom: #17306d;
$custom-light: #626797;
$custom-dark: #000000;

JSON

{
  "hex": "#17306d",
  "rgb": {
    "r": 23,
    "g": 48,
    "b": 109
  },
  "hsl": {
    "h": 222.558,
    "s": 65.152,
    "l": 25.882
  },
  "oklch": {
    "l": 0.32906,
    "c": 0.11077,
    "h": 264.3
  },
  "luminance": 0.034
}

Semantic roles & 50–950 ramp

primary

#17306D

secondary

#A3853D

accent

#B740E8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #17306D

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

Preview Lab → · Contrast checker → · Palette generator →