#15377C#15377C

#15377C is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.7% C 0.124 H 262.3°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#15377C
RGB	rgb(21, 55, 124)
HSL	hsl(220, 71%, 28%)
HSV	hsv(220, 83%, 49%)
CMYK	cmyk(83.1%, 55.6%, 0%, 51.4%)
CIE-LAB	lab(24.79, 15.37, -42.65)
CIE-LCH	lch(24.79, 45.34, 289.82°)
OKLab	oklab(35.69% -0.0166 -0.123)
OKLCH	oklch(35.69% 0.124 262.3)
XYZ	xyz(5.3122, 4.3464, 19.6238)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15377C #7C5A15

analogous

#156A7C #15377C #26157C

triadic

#15377C #7C1537 #377C15

tetradic

#15377C #7C156A #7C5A15 #157C26

square

#15377C #7C156A #7C5A15 #157C26

split-complementary

#15377C #7C2615 #6A7C15

monochromatic

#040C1A #0C2048 #15377C #1E4EB0 #3068DC

Accessibility & contrast

On white

11.23

#15377C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#15377C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15377C

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15377C	#FFFFFF	#000000	##FFFFFF
##15377C	1.00	11.23	1.87	11.23
#FFFFFF	11.23	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00407E

Deuteranopia (green-blind)

#00367B

Tritanopia (blue-blind)

#004854

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #15377c;
/* rgb */ color: rgb(21, 55, 124);
/* oklch */ color: oklch(35.7% 0.124 262.3);

Tailwind

colors: {
  custom: {
    50: '#656da2',
    500: '#15377c',
    950: '#000000',
  },
}

SCSS

$custom: #15377c;
$custom-light: #656da2;
$custom-dark: #000000;

JSON

{
  "hex": "#15377c",
  "rgb": {
    "r": 21,
    "g": 55,
    "b": 124
  },
  "hsl": {
    "h": 220.194,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.35692,
    "c": 0.12411,
    "h": 262.3
  },
  "luminance": 0.04347
}

Semantic roles & 50–950 ramp

primary

#15377C

secondary

#B18A3C

accent

#B23AEE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #15377C

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

Preview Lab → · Contrast checker → · Palette generator →