#15305F#15305F

#15305F is a dark, moderate blue. Relative luminance 0.031; OKLCH L 31.7% C 0.090 H 260.6°. Best body text is #FFFFFF at 12.96:1 contrast (WCAG AA passes).

Color values

HEX	#15305F
RGB	rgb(21, 48, 95)
HSL	hsl(218, 64%, 23%)
HSV	hsv(218, 78%, 37%)
CMYK	cmyk(77.9%, 49.5%, 0%, 62.7%)
CIE-LAB	lab(20.44, 8.19, -31.00)
CIE-LCH	lch(20.44, 32.07, 284.80°)
OKLab	oklab(31.67% -0.0147 -0.0889)
OKLCH	oklch(31.67% 0.09 260.6)
XYZ	xyz(3.4310, 3.0992, 11.2416)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15305F #5F4415

analogous

#15555F #15305F #1F155F

triadic

#15305F #5F1530 #305F15

tetradic

#15305F #5F1555 #5F4415 #155F1F

square

#15305F #5F1555 #5F4415 #155F1F

split-complementary

#15305F #5F1F15 #555F15

monochromatic

#060D19 #0A172D #15305F #204991 #2B63C3

Accessibility & contrast

On white

12.96

#15305F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#15305F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15305F

12.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15305F	#FFFFFF	#000000	##FFFFFF
##15305F	1.00	12.96	1.62	12.96
#FFFFFF	12.96	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#173561

Deuteranopia (green-blind)

#072E5E

Tritanopia (blue-blind)

#003B42

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #15305f;
/* rgb */ color: rgb(21, 48, 95);
/* oklch */ color: oklch(31.7% 0.090 260.6);

Tailwind

colors: {
  custom: {
    50: '#5e678d',
    500: '#15305f',
    950: '#000000',
  },
}

SCSS

$custom: #15305f;
$custom-light: #5e678d;
$custom-dark: #000000;

JSON

{
  "hex": "#15305f",
  "rgb": {
    "r": 21,
    "g": 48,
    "b": 95
  },
  "hsl": {
    "h": 218.108,
    "s": 63.793,
    "l": 22.745
  },
  "oklch": {
    "l": 0.31673,
    "c": 0.09007,
    "h": 260.6
  },
  "luminance": 0.031
}

Semantic roles & 50–950 ramp

primary

#15305F

secondary

#96743A

accent

#AA41E7

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #15305F

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

Preview Lab → · Contrast checker → · Palette generator →