#15153E#15153E

#15153E is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.4% C 0.076 H 278.3°. Best body text is #FFFFFF at 17.37:1 contrast (WCAG AA passes).

Color values

HEX	#15153E
RGB	rgb(21, 21, 62)
HSL	hsl(240, 49%, 16%)
HSV	hsv(240, 66%, 24%)
CMYK	cmyk(66.1%, 66.1%, 0%, 75.7%)
CIE-LAB	lab(9.35, 14.65, -26.36)
CIE-LCH	lch(9.35, 30.16, 299.06°)
OKLab	oklab(22.44% 0.011 -0.0756)
OKLCH	oklch(22.44% 0.076 278.3)
XYZ	xyz(1.4467, 1.0435, 4.6817)
Luminance	0.0104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.73

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15153E #3E3E15

analogous

#152A3E #15153E #2A153E

triadic

#15153E #3E1515 #153E15

tetradic

#15153E #3E152A #3E3E15 #153E2A

square

#15153E #3E152A #3E3E15 #153E2A

split-complementary

#15153E #3E2A15 #2A3E15

monochromatic

#080817 #080817 #15153E #24246C #343499

Accessibility & contrast

On white

17.37

#15153E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#15153E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15153E

17.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15153E	#FFFFFF	#000000	##FFFFFF
##15153E	1.00	17.37	1.21	17.37
#FFFFFF	17.37	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C3F

Deuteranopia (green-blind)

#00193D

Tritanopia (blue-blind)

#011F27

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #15153e;
/* rgb */ color: rgb(21, 21, 62);
/* oklch */ color: oklch(22.4% 0.076 278.3);

Tailwind

colors: {
  custom: {
    50: '#575274',
    500: '#15153e',
    950: '#000000',
  },
}

SCSS

$custom: #15153e;
$custom-light: #575274;
$custom-dark: #000000;

JSON

{
  "hex": "#15153e",
  "rgb": {
    "r": 21,
    "g": 21,
    "b": 62
  },
  "hsl": {
    "h": 240,
    "s": 49.398,
    "l": 16.275
  },
  "oklch": {
    "l": 0.22443,
    "c": 0.07645,
    "h": 278.3
  },
  "luminance": 0.01044
}

Semantic roles & 50–950 ramp

primary

#15153E

secondary

#767639

accent

#D94FD9

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #15153E

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

Preview Lab → · Contrast checker → · Palette generator →