#17316D#17316D

#17316D is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.1% C 0.109 H 263.8°. Best body text is #FFFFFF at 12.38:1 contrast (WCAG AA passes).

Color values

HEX	#17316D
RGB	rgb(23, 49, 109)
HSL	hsl(222, 65%, 26%)
HSV	hsv(222, 79%, 43%)
CMYK	cmyk(78.9%, 55%, 0%, 57.3%)
CIE-LAB	lab(21.88, 13.64, -37.79)
CIE-LCH	lch(21.88, 40.18, 289.85°)
OKLab	oklab(33.14% -0.0118 -0.1088)
OKLCH	oklch(33.14% 0.109 263.8)
XYZ	xyz(4.2110, 3.4824, 14.9153)
Luminance	0.0348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17316D #6D5317

analogous

#175C6D #17316D #28176D

triadic

#17316D #6D1731 #316D17

tetradic

#17316D #6D175C #6D5317 #176D28

square

#17316D #6D175C #6D5317 #176D28

split-complementary

#17316D #6D2817 #5C6D17

monochromatic

#050B19 #0C1A3A #17316D #2248A0 #2C5ED2

Accessibility & contrast

On white

12.38

#17316D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#17316D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17316D

12.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17316D	#FFFFFF	#000000	##FFFFFF
##17316D	1.00	12.38	1.70	12.38
#FFFFFF	12.38	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#08396F

Deuteranopia (green-blind)

#00316C

Tritanopia (blue-blind)

#00404A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #17316d;
/* rgb */ color: rgb(23, 49, 109);
/* oklch */ color: oklch(33.1% 0.109 263.8);

Tailwind

colors: {
  custom: {
    50: '#626897',
    500: '#17316d',
    950: '#000000',
  },
}

SCSS

$custom: #17316d;
$custom-light: #626897;
$custom-dark: #000000;

JSON

{
  "hex": "#17316d",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 109
  },
  "hsl": {
    "h": 221.86,
    "s": 65.152,
    "l": 25.882
  },
  "oklch": {
    "l": 0.33135,
    "c": 0.10941,
    "h": 263.8
  },
  "luminance": 0.03483
}

Semantic roles & 50–950 ramp

primary

#17316D

secondary

#A3843D

accent

#B540E8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #17316D

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

Preview Lab → · Contrast checker → · Palette generator →