#15257C#15257C

#15257C is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.0% C 0.147 H 268.0°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#15257C
RGB	rgb(21, 37, 124)
HSL	hsl(231, 71%, 28%)
HSV	hsv(231, 83%, 49%)
CMYK	cmyk(83.1%, 70.2%, 0%, 51.4%)
CIE-LAB	lab(19.79, 28.04, -50.81)
CIE-LCH	lch(19.79, 58.04, 298.89°)
OKLab	oklab(31.97% -0.0051 -0.1472)
OKLCH	oklch(31.97% 0.147 268)
XYZ	xyz(4.6077, 2.9373, 19.3890)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15257C #7C6C15

analogous

#15587C #15257C #39157C

triadic

#15257C #7C1525 #257C15

tetradic

#15257C #7C1558 #7C6C15 #157C39

square

#15257C #7C1558 #7C6C15 #157C39

split-complementary

#15257C #7C3915 #587C15

monochromatic

#04081A #0C1548 #15257C #1E35B0 #304ADC

Accessibility & contrast

On white

13.23

#15257C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#15257C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15257C

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15257C	#FFFFFF	#000000	##FFFFFF
##15257C	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357F

Deuteranopia (green-blind)

#002B7A

Tritanopia (blue-blind)

#003D4D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #15257c;
/* rgb */ color: rgb(21, 37, 124);
/* oklch */ color: oklch(32.0% 0.147 268.0);

Tailwind

colors: {
  custom: {
    50: '#675fa3',
    500: '#15257c',
    950: '#000000',
  },
}

SCSS

$custom: #15257c;
$custom-light: #675fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#15257c",
  "rgb": {
    "r": 21,
    "g": 37,
    "b": 124
  },
  "hsl": {
    "h": 230.68,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.31973,
    "c": 0.14726,
    "h": 268
  },
  "luminance": 0.02938
}

Semantic roles & 50–950 ramp

primary

#15257C

secondary

#B19F3C

accent

#D23AEE

background

#F6F5FA

surface

#EBE9F4

border

#C6C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #15257C

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

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