#15397E#15397E

#15397E is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.3% C 0.124 H 261.7°. Best body text is #FFFFFF at 10.95:1 contrast (WCAG AA passes).

Color values

HEX	#15397E
RGB	rgb(21, 57, 126)
HSL	hsl(219, 71%, 29%)
HSV	hsv(219, 83%, 49%)
CMYK	cmyk(83.3%, 54.8%, 0%, 50.6%)
CIE-LAB	lab(25.54, 14.79, -42.69)
CIE-LCH	lch(25.54, 45.18, 289.10°)
OKLab	oklab(36.31% -0.0179 -0.1231)
OKLCH	oklch(36.31% 0.124 261.7)
XYZ	xyz(5.5369, 4.5914, 20.3290)
Luminance	0.0459 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15397E #7E5A15

analogous

#156E7E #15397E #26157E

triadic

#15397E #7E1539 #397E15

tetradic

#15397E #7E156E #7E5A15 #157E26

square

#15397E #7E156E #7E5A15 #157E26

split-complementary

#15397E #7E2615 #6E7E15

monochromatic

#040C1A #0C214A #15397E #1E51B2 #316CDD

Accessibility & contrast

On white

10.95

#15397E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#15397E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15397E

10.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15397E	#FFFFFF	#000000	##FFFFFF
##15397E	1.00	10.95	1.92	10.95
#FFFFFF	10.95	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#054280

Deuteranopia (green-blind)

#00387D

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #15397e;
/* rgb */ color: rgb(21, 57, 126);
/* oklch */ color: oklch(36.3% 0.124 261.7);

Tailwind

colors: {
  custom: {
    50: '#666ea4',
    500: '#15397e',
    950: '#000000',
  },
}

SCSS

$custom: #15397e;
$custom-light: #666ea4;
$custom-dark: #000000;

JSON

{
  "hex": "#15397e",
  "rgb": {
    "r": 21,
    "g": 57,
    "b": 126
  },
  "hsl": {
    "h": 219.429,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.36314,
    "c": 0.12437,
    "h": 261.7
  },
  "luminance": 0.04592
}

Semantic roles & 50–950 ramp

primary

#15397E

secondary

#B38A3C

accent

#B03AEE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #15397E

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

Preview Lab → · Contrast checker → · Palette generator →