#15316D#15316D

#15316D is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.0% C 0.110 H 263.0°. Best body text is #FFFFFF at 12.41:1 contrast (WCAG AA passes).

Color values

HEX	#15316D
RGB	rgb(21, 49, 109)
HSL	hsl(221, 68%, 25%)
HSV	hsv(221, 81%, 43%)
CMYK	cmyk(80.7%, 55%, 0%, 57.3%)
CIE-LAB	lab(21.80, 13.38, -37.92)
CIE-LCH	lch(21.80, 40.22, 289.43°)
OKLab	oklab(33.05% -0.0135 -0.1092)
OKLCH	oklch(33.05% 0.11 263)
XYZ	xyz(4.1669, 3.4597, 14.9132)
Luminance	0.0346 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15316D #6D5115

analogous

#155D6D #15316D #25156D

triadic

#15316D #6D1531 #316D15

tetradic

#15316D #6D155D #6D5115 #156D25

square

#15316D #6D155D #6D5115 #156D25

split-complementary

#15316D #6D2515 #5D6D15

monochromatic

#050C1A #0B1A3A #15316D #1F48A0 #295FD4

Accessibility & contrast

On white

12.41

#15316D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#15316D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15316D

12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15316D	#FFFFFF	#000000	##FFFFFF
##15316D	1.00	12.41	1.69	12.41
#FFFFFF	12.41	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07386F

Deuteranopia (green-blind)

#00306C

Tritanopia (blue-blind)

#00404A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #15316d;
/* rgb */ color: rgb(21, 49, 109);
/* oklch */ color: oklch(33.0% 0.110 263.0);

Tailwind

colors: {
  custom: {
    50: '#616897',
    500: '#15316d',
    950: '#000000',
  },
}

SCSS

$custom: #15316d;
$custom-light: #616897;
$custom-dark: #000000;

JSON

{
  "hex": "#15316d",
  "rgb": {
    "r": 21,
    "g": 49,
    "b": 109
  },
  "hsl": {
    "h": 220.909,
    "s": 67.692,
    "l": 25.49
  },
  "oklch": {
    "l": 0.33049,
    "c": 0.11005,
    "h": 263
  },
  "luminance": 0.0346
}

Semantic roles & 50–950 ramp

primary

#15316D

secondary

#A3823A

accent

#B33DEB

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #15316D

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

Preview Lab → · Contrast checker → · Palette generator →