#17284F#17284F

#17284F is a dark, moderate blue. Relative luminance 0.023; OKLCH L 28.6% C 0.075 H 264.4°. Best body text is #FFFFFF at 14.45:1 contrast (WCAG AA passes).

Color values

HEX	#17284F
RGB	rgb(23, 40, 79)
HSL	hsl(222, 55%, 20%)
HSV	hsv(222, 71%, 31%)
CMYK	cmyk(70.9%, 49.4%, 0%, 69%)
CIE-LAB	lab(16.82, 7.70, -26.13)
CIE-LCH	lch(16.82, 27.24, 286.43°)
OKLab	oklab(28.55% -0.0073 -0.0746)
OKLCH	oklch(28.55% 0.075 264.4)
XYZ	xyz(2.5229, 2.2640, 7.6997)
Luminance	0.0226 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17284F #4F3E17

analogous

#17444F #17284F #22174F

triadic

#17284F #4F1728 #284F17

tetradic

#17284F #4F1744 #4F3E17 #174F22

square

#17284F #4F1744 #4F3E17 #174F22

split-complementary

#17284F #4F2217 #444F17

monochromatic

#070C18 #091020 #17284F #25407E #3358AE

Accessibility & contrast

On white

14.45

#17284F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#17284F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17284F

14.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17284F	#FFFFFF	#000000	##FFFFFF
##17284F	1.00	14.45	1.45	14.45
#FFFFFF	14.45	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#152C50

Deuteranopia (green-blind)

#0C274E

Tritanopia (blue-blind)

#003137

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #17284f;
/* rgb */ color: rgb(23, 40, 79);
/* oklch */ color: oklch(28.6% 0.075 264.4);

Tailwind

colors: {
  custom: {
    50: '#5b6180',
    500: '#17284f',
    950: '#000000',
  },
}

SCSS

$custom: #17284f;
$custom-light: #5b6180;
$custom-dark: #000000;

JSON

{
  "hex": "#17284f",
  "rgb": {
    "r": 23,
    "g": 40,
    "b": 79
  },
  "hsl": {
    "h": 221.786,
    "s": 54.902,
    "l": 20
  },
  "oklch": {
    "l": 0.28552,
    "c": 0.07499,
    "h": 264.4
  },
  "luminance": 0.02264
}

Semantic roles & 50–950 ramp

primary

#17284F

secondary

#86703C

accent

#B14ADE

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04050A

muted

#79797C

Preview Lab

Preview with #17284F

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

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