#15174E#15174E

#15174E is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.4% C 0.099 H 274.7°. Best body text is #FFFFFF at 16.61:1 contrast (WCAG AA passes).

Color values

HEX	#15174E
RGB	rgb(21, 23, 78)
HSL	hsl(238, 58%, 19%)
HSV	hsv(238, 73%, 31%)
CMYK	cmyk(73.1%, 70.5%, 0%, 69.4%)
CIE-LAB	lab(11.43, 19.59, -34.17)
CIE-LCH	lch(11.43, 39.38, 299.82°)
OKLab	oklab(24.45% 0.0081 -0.0986)
OKLCH	oklch(24.45% 0.099 274.7)
XYZ	xyz(1.9903, 1.3221, 7.3566)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.65

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15174E #4E4C15

analogous

#15344E #15174E #30154E

triadic

#15174E #4E1517 #174E15

tetradic

#15174E #4E1534 #4E4C15 #154E30

square

#15174E #4E1534 #4E4C15 #154E30

split-complementary

#15174E #4E3015 #344E15

monochromatic

#060718 #08091E #15174E #22257E #2F33AE

Accessibility & contrast

On white

16.61

#15174E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#15174E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15174E

16.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15174E	#FFFFFF	#000000	##FFFFFF
##15174E	1.00	16.61	1.26	16.61
#FFFFFF	16.61	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002150

Deuteranopia (green-blind)

#001C4D

Tritanopia (blue-blind)

#002530

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #15174e;
/* rgb */ color: rgb(21, 23, 78);
/* oklch */ color: oklch(24.4% 0.099 274.7);

Tailwind

colors: {
  custom: {
    50: '#5b5480',
    500: '#15174e',
    950: '#000000',
  },
}

SCSS

$custom: #15174e;
$custom-light: #5b5480;
$custom-dark: #000000;

JSON

{
  "hex": "#15174e",
  "rgb": {
    "r": 21,
    "g": 23,
    "b": 78
  },
  "hsl": {
    "h": 237.895,
    "s": 57.576,
    "l": 19.412
  },
  "oklch": {
    "l": 0.24445,
    "c": 0.0989,
    "h": 274.7
  },
  "luminance": 0.01322
}

Semantic roles & 50–950 ramp

primary

#15174E

secondary

#868339

accent

#DB47E1

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #15174E

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

Preview Lab → · Contrast checker → · Palette generator →