#15257F#15257F

#15257F is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.3% C 0.151 H 268.0°. Best body text is #FFFFFF at 13.10:1 contrast (WCAG AA passes).

Color values

HEX	#15257F
RGB	rgb(21, 37, 127)
HSL	hsl(231, 72%, 29%)
HSV	hsv(231, 83%, 50%)
CMYK	cmyk(83.5%, 70.9%, 0%, 50.2%)
CIE-LAB	lab(20.10, 29.21, -52.21)
CIE-LCH	lch(20.10, 59.82, 299.23°)
OKLab	oklab(32.29% -0.0053 -0.1512)
OKLCH	oklch(32.29% 0.151 268)
XYZ	xyz(4.8003, 3.0143, 20.4034)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15257F #7F6F15

analogous

#155A7F #15257F #3A157F

triadic

#15257F #7F1525 #257F15

tetradic

#15257F #7F155A #7F6F15 #157F3A

square

#15257F #7F155A #7F6F15 #157F3A

split-complementary

#15257F #7F3A15 #5A7F15

monochromatic

#04081A #0C164A #15257F #1E34B4 #314BDD

Accessibility & contrast

On white

13.10

#15257F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#15257F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15257F

13.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15257F	#FFFFFF	#000000	##FFFFFF
##15257F	1.00	13.10	1.60	13.10
#FFFFFF	13.10	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003682

Deuteranopia (green-blind)

#002B7D

Tritanopia (blue-blind)

#003E4F

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #15257f;
/* rgb */ color: rgb(21, 37, 127);
/* oklch */ color: oklch(32.3% 0.151 268.0);

Tailwind

colors: {
  custom: {
    50: '#685fa5',
    500: '#15257f',
    950: '#000000',
  },
}

SCSS

$custom: #15257f;
$custom-light: #685fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#15257f",
  "rgb": {
    "r": 21,
    "g": 37,
    "b": 127
  },
  "hsl": {
    "h": 230.943,
    "s": 71.622,
    "l": 29.02
  },
  "oklch": {
    "l": 0.32293,
    "c": 0.15133,
    "h": 268
  },
  "luminance": 0.03015
}

Semantic roles & 50–950 ramp

primary

#15257F

secondary

#B4A23C

accent

#D339EE

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #15257F

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

Preview Lab → · Contrast checker → · Palette generator →