#17277B#17277B

#17277B is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.3% C 0.143 H 268.3°. Best body text is #FFFFFF at 13.02:1 contrast (WCAG AA passes).

Color values

HEX	#17277B
RGB	rgb(23, 39, 123)
HSL	hsl(230, 68%, 29%)
HSV	hsv(230, 81%, 48%)
CMYK	cmyk(81.3%, 68.3%, 0%, 51.8%)
CIE-LAB	lab(20.29, 26.47, -49.35)
CIE-LCH	lch(20.29, 56.00, 298.21°)
OKLab	oklab(32.34% -0.0042 -0.1428)
OKLCH	oklch(32.34% 0.143 268.3)
XYZ	xyz(4.6528, 3.0627, 19.0810)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17277B #7B6B17

analogous

#17597B #17277B #39177B

triadic

#17277B #7B1727 #277B17

tetradic

#17277B #7B1759 #7B6B17 #177B39

square

#17277B #7B1759 #7B6B17 #177B39

split-complementary

#17277B #7B3917 #597B17

monochromatic

#05081A #0D1747 #17277B #2137AF #334ED9

Accessibility & contrast

On white

13.02

#17277B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#17277B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17277B

13.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17277B	#FFFFFF	#000000	##FFFFFF
##17277B	1.00	13.02	1.61	13.02
#FFFFFF	13.02	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367E

Deuteranopia (green-blind)

#002C79

Tritanopia (blue-blind)

#003E4D

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #17277b;
/* rgb */ color: rgb(23, 39, 123);
/* oklch */ color: oklch(32.3% 0.143 268.3);

Tailwind

colors: {
  custom: {
    50: '#6761a2',
    500: '#17277b',
    950: '#000000',
  },
}

SCSS

$custom: #17277b;
$custom-light: #6761a2;
$custom-dark: #000000;

JSON

{
  "hex": "#17277b",
  "rgb": {
    "r": 23,
    "g": 39,
    "b": 123
  },
  "hsl": {
    "h": 230.4,
    "s": 68.493,
    "l": 28.627
  },
  "oklch": {
    "l": 0.32335,
    "c": 0.1429,
    "h": 268.3
  },
  "luminance": 0.03063
}

Semantic roles & 50–950 ramp

primary

#17277B

secondary

#B09E3E

accent

#CF3CEB

background

#F6F5FA

surface

#EBE9F4

border

#C6C5CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #17277B

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

Preview Lab → · Contrast checker → · Palette generator →