#15347B#15347B

#15347B is a dark, vivid blue. Relative luminance 0.040; OKLCH L 34.9% C 0.127 H 263.4°. Best body text is #FFFFFF at 11.61:1 contrast (WCAG AA passes).

Color values

HEX	#15347B
RGB	rgb(21, 52, 123)
HSL	hsl(222, 71%, 28%)
HSV	hsv(222, 83%, 48%)
CMYK	cmyk(82.9%, 57.7%, 0%, 51.8%)
CIE-LAB	lab(23.82, 17.09, -43.59)
CIE-LCH	lch(23.82, 46.82, 291.41°)
OKLab	oklab(34.94% -0.0144 -0.1258)
OKLCH	oklch(34.94% 0.127 263.4)
XYZ	xyz(5.1111, 4.0449, 19.2464)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15347B #7B5C15

analogous

#15677B #15347B #29157B

triadic

#15347B #7B1534 #347B15

tetradic

#15347B #7B1567 #7B5C15 #157B29

square

#15347B #7B1567 #7B5C15 #157B29

split-complementary

#15347B #7B2915 #677B15

monochromatic

#040B1A #0C1E47 #15347B #1E4AAF #2F63DB

Accessibility & contrast

On white

11.61

#15347B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#15347B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15347B

11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15347B	#FFFFFF	#000000	##FFFFFF
##15347B	1.00	11.61	1.81	11.61
#FFFFFF	11.61	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7D

Deuteranopia (green-blind)

#00347A

Tritanopia (blue-blind)

#004652

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #15347b;
/* rgb */ color: rgb(21, 52, 123);
/* oklch */ color: oklch(34.9% 0.127 263.4);

Tailwind

colors: {
  custom: {
    50: '#656aa2',
    500: '#15347b',
    950: '#000000',
  },
}

SCSS

$custom: #15347b;
$custom-light: #656aa2;
$custom-dark: #000000;

JSON

{
  "hex": "#15347b",
  "rgb": {
    "r": 21,
    "g": 52,
    "b": 123
  },
  "hsl": {
    "h": 221.765,
    "s": 70.833,
    "l": 28.235
  },
  "oklch": {
    "l": 0.34936,
    "c": 0.12665,
    "h": 263.4
  },
  "luminance": 0.04045
}

Semantic roles & 50–950 ramp

primary

#15347B

secondary

#B08D3B

accent

#B73AEE

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #15347B

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

Preview Lab → · Contrast checker → · Palette generator →