#15257E#15257E

#15257E is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.2% C 0.150 H 268.0°. Best body text is #FFFFFF at 13.14:1 contrast (WCAG AA passes).

Color values

HEX	#15257E
RGB	rgb(21, 37, 126)
HSL	hsl(231, 71%, 29%)
HSV	hsv(231, 83%, 49%)
CMYK	cmyk(83.3%, 70.6%, 0%, 50.6%)
CIE-LAB	lab(20.00, 28.82, -51.74)
CIE-LCH	lch(20.00, 59.23, 299.12°)
OKLab	oklab(32.19% -0.0052 -0.1499)
OKLCH	oklch(32.19% 0.15 268)
XYZ	xyz(4.7354, 2.9884, 20.0619)
Luminance	0.0299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15257E #7E6E15

analogous

#155A7E #15257E #3A157E

triadic

#15257E #7E1525 #257E15

tetradic

#15257E #7E155A #7E6E15 #157E3A

square

#15257E #7E155A #7E6E15 #157E3A

split-complementary

#15257E #7E3A15 #5A7E15

monochromatic

#04081A #0C164A #15257E #1E34B2 #314BDD

Accessibility & contrast

On white

13.14

#15257E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#15257E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15257E

13.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15257E	#FFFFFF	#000000	##FFFFFF
##15257E	1.00	13.14	1.60	13.14
#FFFFFF	13.14	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003581

Deuteranopia (green-blind)

#002B7C

Tritanopia (blue-blind)

#003E4E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #15257e;
/* rgb */ color: rgb(21, 37, 126);
/* oklch */ color: oklch(32.2% 0.150 268.0);

Tailwind

colors: {
  custom: {
    50: '#675fa4',
    500: '#15257e',
    950: '#000000',
  },
}

SCSS

$custom: #15257e;
$custom-light: #675fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#15257e",
  "rgb": {
    "r": 21,
    "g": 37,
    "b": 126
  },
  "hsl": {
    "h": 230.857,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.32186,
    "c": 0.14997,
    "h": 268
  },
  "luminance": 0.02989
}

Semantic roles & 50–950 ramp

primary

#15257E

secondary

#B3A13C

accent

#D33AEE

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #15257E

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

Preview Lab → · Contrast checker → · Palette generator →