#15174F#15174F

#15174F is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.5% C 0.100 H 274.6°. Best body text is #FFFFFF at 16.57:1 contrast (WCAG AA passes).

Color values

HEX	#15174F
RGB	rgb(21, 23, 79)
HSL	hsl(238, 58%, 20%)
HSV	hsv(238, 73%, 31%)
CMYK	cmyk(73.4%, 70.9%, 0%, 69%)
CIE-LAB	lab(11.53, 19.99, -34.69)
CIE-LCH	lch(11.53, 40.04, 299.95°)
OKLab	oklab(24.55% 0.0081 -0.1001)
OKLCH	oklch(24.55% 0.1 274.6)
XYZ	xyz(2.0265, 1.3366, 7.5468)
Luminance	0.0134 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.77

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15174F #4F4D15

analogous

#15344F #15174F #30154F

triadic

#15174F #4F1517 #174F15

tetradic

#15174F #4F1534 #4F4D15 #154F30

square

#15174F #4F1534 #4F4D15 #154F30

split-complementary

#15174F #4F3015 #344F15

monochromatic

#060718 #08091F #15174F #22257F #2F33B0

Accessibility & contrast

On white

16.57

#15174F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#15174F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15174F

16.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15174F	#FFFFFF	#000000	##FFFFFF
##15174F	1.00	16.57	1.27	16.57
#FFFFFF	16.57	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002151

Deuteranopia (green-blind)

#001C4E

Tritanopia (blue-blind)

#002530

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #15174f;
/* rgb */ color: rgb(21, 23, 79);
/* oklch */ color: oklch(24.5% 0.100 274.6);

Tailwind

colors: {
  custom: {
    50: '#5b5481',
    500: '#15174f',
    950: '#000000',
  },
}

SCSS

$custom: #15174f;
$custom-light: #5b5481;
$custom-dark: #000000;

JSON

{
  "hex": "#15174f",
  "rgb": {
    "r": 21,
    "g": 23,
    "b": 79
  },
  "hsl": {
    "h": 237.931,
    "s": 58,
    "l": 19.608
  },
  "oklch": {
    "l": 0.24549,
    "c": 0.10042,
    "h": 274.6
  },
  "luminance": 0.01337
}

Semantic roles & 50–950 ramp

primary

#15174F

secondary

#878439

accent

#DC47E1

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #15174F

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

Preview Lab → · Contrast checker → · Palette generator →