#172157#172157

#172157 is a dark, moderate blue. Relative luminance 0.020; OKLCH L 27.6% C 0.098 H 270.6°. Best body text is #FFFFFF at 15.09:1 contrast (WCAG AA passes).

Color values

HEX	#172157
RGB	rgb(23, 33, 87)
HSL	hsl(231, 58%, 22%)
HSV	hsv(231, 74%, 34%)
CMYK	cmyk(73.6%, 62.1%, 0%, 65.9%)
CIE-LAB	lab(15.26, 16.22, -34.03)
CIE-LCH	lch(15.26, 37.70, 295.49°)
OKLab	oklab(27.58% 0.0011 -0.098)
OKLCH	oklch(27.58% 0.098 270.6)
XYZ	xyz(2.6169, 1.9577, 9.2549)
Luminance	0.0196 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172157 #574D17

analogous

#174157 #172157 #2D1757

triadic

#172157 #571721 #215717

tetradic

#172157 #571741 #574D17 #17572D

square

#172157 #571741 #574D17 #17572D

split-complementary

#172157 #572D17 #415717

monochromatic

#060918 #0A0F27 #172157 #243387 #3146B8

Accessibility & contrast

On white

15.09

#172157 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#172157 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172157

15.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172157	#FFFFFF	#000000	##FFFFFF
##172157	1.00	15.09	1.39	15.09
#FFFFFF	15.09	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002959

Deuteranopia (green-blind)

#002356

Tritanopia (blue-blind)

#002E38

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #172157;
/* rgb */ color: rgb(23, 33, 87);
/* oklch */ color: oklch(27.6% 0.098 270.6);

Tailwind

colors: {
  custom: {
    50: '#5d5c87',
    500: '#172157',
    950: '#000000',
  },
}

SCSS

$custom: #172157;
$custom-light: #5d5c87;
$custom-dark: #000000;

JSON

{
  "hex": "#172157",
  "rgb": {
    "r": 23,
    "g": 33,
    "b": 87
  },
  "hsl": {
    "h": 230.625,
    "s": 58.182,
    "l": 21.569
  },
  "oklch": {
    "l": 0.27577,
    "c": 0.09802,
    "h": 270.6
  },
  "luminance": 0.01958
}

Semantic roles & 50–950 ramp

primary

#172157

secondary

#8E813C

accent

#C946E1

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05040B

muted

#79797C

Preview Lab

Preview with #172157

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

Preview Lab → · Contrast checker → · Palette generator →