#15397C#15397C

#15397C is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.1% C 0.121 H 261.4°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#15397C
RGB	rgb(21, 57, 124)
HSL	hsl(219, 71%, 28%)
HSV	hsv(219, 83%, 49%)
CMYK	cmyk(83.1%, 54%, 0%, 51.4%)
CIE-LAB	lab(25.38, 13.95, -41.68)
CIE-LCH	lch(25.38, 43.96, 288.50°)
OKLab	oklab(36.15% -0.0181 -0.1201)
OKLCH	oklch(36.15% 0.121 261.4)
XYZ	xyz(5.4092, 4.5403, 19.6561)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15397C #7C5815

analogous

#156C7C #15397C #24157C

triadic

#15397C #7C1539 #397C15

tetradic

#15397C #7C156C #7C5815 #157C24

square

#15397C #7C156C #7C5815 #157C24

split-complementary

#15397C #7C2415 #6C7C15

monochromatic

#040C1A #0C2148 #15397C #1E51B0 #306CDC

Accessibility & contrast

On white

11.01

#15397C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#15397C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15397C

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15397C	#FFFFFF	#000000	##FFFFFF
##15397C	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A417E

Deuteranopia (green-blind)

#00387B

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #15397c;
/* rgb */ color: rgb(21, 57, 124);
/* oklch */ color: oklch(36.1% 0.121 261.4);

Tailwind

colors: {
  custom: {
    50: '#656ea2',
    500: '#15397c',
    950: '#000000',
  },
}

SCSS

$custom: #15397c;
$custom-light: #656ea2;
$custom-dark: #000000;

JSON

{
  "hex": "#15397c",
  "rgb": {
    "r": 21,
    "g": 57,
    "b": 124
  },
  "hsl": {
    "h": 219.029,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.36147,
    "c": 0.12147,
    "h": 261.4
  },
  "luminance": 0.04541
}

Semantic roles & 50–950 ramp

primary

#15397C

secondary

#B1883C

accent

#AF3AEE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #15397C

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

Preview Lab → · Contrast checker → · Palette generator →