#17306B#17306B

#17306B is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.7% C 0.108 H 264.1°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#17306B
RGB	rgb(23, 48, 107)
HSL	hsl(222, 65%, 25%)
HSV	hsv(222, 79%, 42%)
CMYK	cmyk(78.5%, 55.1%, 0%, 58%)
CIE-LAB	lab(21.42, 13.53, -37.24)
CIE-LCH	lch(21.42, 39.62, 289.97°)
OKLab	oklab(32.74% -0.0112 -0.1072)
OKLCH	oklch(32.74% 0.108 264.1)
XYZ	xyz(4.0632, 3.3572, 14.3409)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17306B #6B5217

analogous

#175A6B #17306B #28176B

triadic

#17306B #6B1730 #306B17

tetradic

#17306B #6B175A #6B5217 #176B28

square

#17306B #6B175A #6B5217 #176B28

split-complementary

#17306B #6B2817 #5A6B17

monochromatic

#050B19 #0C1939 #17306B #22479D #2D5DD0

Accessibility & contrast

On white

12.56

#17306B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#17306B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17306B

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17306B	#FFFFFF	#000000	##FFFFFF
##17306B	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#08376D

Deuteranopia (green-blind)

#00306A

Tritanopia (blue-blind)

#003E48

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #17306b;
/* rgb */ color: rgb(23, 48, 107);
/* oklch */ color: oklch(32.7% 0.108 264.1);

Tailwind

colors: {
  custom: {
    50: '#626796',
    500: '#17306b',
    950: '#000000',
  },
}

SCSS

$custom: #17306b;
$custom-light: #626796;
$custom-dark: #000000;

JSON

{
  "hex": "#17306b",
  "rgb": {
    "r": 23,
    "g": 48,
    "b": 107
  },
  "hsl": {
    "h": 222.143,
    "s": 64.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.32736,
    "c": 0.10776,
    "h": 264.1
  },
  "luminance": 0.03358
}

Semantic roles & 50–950 ramp

primary

#17306B

secondary

#A1833D

accent

#B640E8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #17306B

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

Preview Lab → · Contrast checker → · Palette generator →