#15309F#15309F

#15309F is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.6% C 0.181 H 266.1°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#15309F
RGB	rgb(21, 48, 159)
HSL	hsl(228, 77%, 35%)
HSV	hsv(228, 87%, 62%)
CMYK	cmyk(86.8%, 69.8%, 0%, 37.6%)
CIE-LAB	lab(26.09, 34.21, -62.21)
CIE-LCH	lch(26.09, 70.99, 298.81°)
OKLab	oklab(37.64% -0.0123 -0.1803)
OKLCH	oklch(37.64% 0.181 266.1)
XYZ	xyz(7.6220, 4.7756, 33.3142)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15309F #9F8415

analogous

#15759F #15309F #3F159F

triadic

#15309F #9F1530 #309F15

tetradic

#15309F #9F1575 #9F8415 #159F3F

square

#15309F #9F1575 #9F8415 #159F3F

split-complementary

#15309F #9F3F15 #759F15

monochromatic

#070F33 #0E2069 #15309F #1C40D5 #4867E7

Accessibility & contrast

On white

10.74

#15309F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#15309F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15309F

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15309F	#FFFFFF	#000000	##FFFFFF
##15309F	1.00	10.74	1.96	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A2

Deuteranopia (green-blind)

#00379D

Tritanopia (blue-blind)

#004F63

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #15309f;
/* rgb */ color: rgb(21, 48, 159);
/* oklch */ color: oklch(37.6% 0.181 266.1);

Tailwind

colors: {
  custom: {
    50: '#7068bc',
    500: '#15309f',
    950: '#000000',
  },
}

SCSS

$custom: #15309f;
$custom-light: #7068bc;
$custom-dark: #000000;

JSON

{
  "hex": "#15309f",
  "rgb": {
    "r": 21,
    "g": 48,
    "b": 159
  },
  "hsl": {
    "h": 228.261,
    "s": 76.667,
    "l": 35.294
  },
  "oklch": {
    "l": 0.37636,
    "c": 0.18077,
    "h": 266.1
  },
  "luminance": 0.04777
}

Semantic roles & 50–950 ramp

primary

#15309F

secondary

#C8AF48

accent

#CE35F3

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #15309F

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

Preview Lab → · Contrast checker → · Palette generator →