#15154B#15154B

#15154B is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.7% C 0.097 H 276.1°. Best body text is #FFFFFF at 16.92:1 contrast (WCAG AA passes).

Color values

HEX	#15154B
RGB	rgb(21, 21, 75)
HSL	hsl(240, 56%, 19%)
HSV	hsv(240, 72%, 29%)
CMYK	cmyk(72%, 72%, 0%, 70.6%)
CIE-LAB	lab(10.58, 19.84, -33.48)
CIE-LCH	lch(10.58, 38.91, 300.65°)
OKLab	oklab(23.74% 0.0103 -0.0965)
OKLCH	oklch(23.74% 0.097 276.1)
XYZ	xyz(1.8470, 1.2036, 6.7902)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15154B #4B4B15

analogous

#15304B #15154B #30154B

triadic

#15154B #4B1515 #154B15

tetradic

#15154B #4B1530 #4B4B15 #154B30

square

#15154B #4B1530 #4B4B15 #154B30

split-complementary

#15154B #4B3015 #304B15

monochromatic

#070718 #08081B #15154B #22227B #3030AB

Accessibility & contrast

On white

16.92

#15154B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#15154B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15154B

16.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15154B	#FFFFFF	#000000	##FFFFFF
##15154B	1.00	16.92	1.24	16.92
#FFFFFF	16.92	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F4D

Deuteranopia (green-blind)

#001A4A

Tritanopia (blue-blind)

#00232D

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #15154b;
/* rgb */ color: rgb(21, 21, 75);
/* oklch */ color: oklch(23.7% 0.097 276.1);

Tailwind

colors: {
  custom: {
    50: '#5b527e',
    500: '#15154b',
    950: '#000000',
  },
}

SCSS

$custom: #15154b;
$custom-light: #5b527e;
$custom-dark: #000000;

JSON

{
  "hex": "#15154b",
  "rgb": {
    "r": 21,
    "g": 21,
    "b": 75
  },
  "hsl": {
    "h": 240,
    "s": 56.25,
    "l": 18.824
  },
  "oklch": {
    "l": 0.23736,
    "c": 0.09709,
    "h": 276.1
  },
  "luminance": 0.01204
}

Semantic roles & 50–950 ramp

primary

#15154B

secondary

#838339

accent

#E048E0

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #15154B

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

Preview Lab → · Contrast checker → · Palette generator →