#172C61#172C61

#172C61 is a dark, moderate blue. Relative luminance 0.028; OKLCH L 31.0% C 0.098 H 264.9°. Best body text is #FFFFFF at 13.38:1 contrast (WCAG AA passes).

Color values

HEX	#172C61
RGB	rgb(23, 44, 97)
HSL	hsl(223, 62%, 24%)
HSV	hsv(223, 76%, 38%)
CMYK	cmyk(76.3%, 54.6%, 0%, 62%)
CIE-LAB	lab(19.42, 12.26, -33.96)
CIE-LCH	lch(19.42, 36.10, 289.86°)
OKLab	oklab(30.97% -0.0087 -0.0976)
OKLCH	oklch(30.97% 0.098 264.9)
XYZ	xyz(3.4109, 2.8462, 11.6766)
Luminance	0.0285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172C61 #614C17

analogous

#175161 #172C61 #271761

triadic

#172C61 #61172C #2C6117

tetradic

#172C61 #611751 #614C17 #176127

square

#172C61 #611751 #614C17 #176127

split-complementary

#172C61 #612717 #516117

monochromatic

#060B19 #0B1630 #172C61 #234292 #2E59C4

Accessibility & contrast

On white

13.38

#172C61 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#172C61 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172C61

13.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172C61	#FFFFFF	#000000	##FFFFFF
##172C61	1.00	13.38	1.57	13.38
#FFFFFF	13.38	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B3363

Deuteranopia (green-blind)

#002C60

Tritanopia (blue-blind)

#003942

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #172c61;
/* rgb */ color: rgb(23, 44, 97);
/* oklch */ color: oklch(31.0% 0.098 264.9);

Tailwind

colors: {
  custom: {
    50: '#5f648e',
    500: '#172c61',
    950: '#000000',
  },
}

SCSS

$custom: #172c61;
$custom-light: #5f648e;
$custom-dark: #000000;

JSON

{
  "hex": "#172c61",
  "rgb": {
    "r": 23,
    "g": 44,
    "b": 97
  },
  "hsl": {
    "h": 222.973,
    "s": 61.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.30967,
    "c": 0.09798,
    "h": 264.9
  },
  "luminance": 0.02847
}

Semantic roles & 50–950 ramp

primary

#172C61

secondary

#987E3C

accent

#B743E5

background

#F5F5F8

surface

#EAEAF0

border

#C6C6CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #172C61

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

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