#15256B#15256B

#15256B is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.2% C 0.123 H 268.0°. Best body text is #FFFFFF at 13.92:1 contrast (WCAG AA passes).

Color values

HEX	#15256B
RGB	rgb(21, 37, 107)
HSL	hsl(229, 67%, 25%)
HSV	hsv(229, 80%, 42%)
CMYK	cmyk(80.4%, 65.4%, 0%, 58%)
CIE-LAB	lab(18.12, 21.24, -42.62)
CIE-LCH	lch(18.12, 47.62, 296.48°)
OKLab	oklab(30.23% -0.0043 -0.1232)
OKLCH	oklch(30.23% 0.123 268)
XYZ	xyz(3.6237, 2.5437, 14.2071)
Luminance	0.0254 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15256B #6B5B15

analogous

#15506B #15256B #30156B

triadic

#15256B #6B1525 #256B15

tetradic

#15256B #6B1550 #6B5B15 #156B30

square

#15256B #6B1550 #6B5B15 #156B30

split-complementary

#15256B #6B3015 #506B15

monochromatic

#05091A #0B1338 #15256B #1F379E #2948D1

Accessibility & contrast

On white

13.92

#15256B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#15256B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15256B

13.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15256B	#FFFFFF	#000000	##FFFFFF
##15256B	1.00	13.92	1.51	13.92
#FFFFFF	13.92	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00306D

Deuteranopia (green-blind)

#00286A

Tritanopia (blue-blind)

#003744

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #15256b;
/* rgb */ color: rgb(21, 37, 107);
/* oklch */ color: oklch(30.2% 0.123 268.0);

Tailwind

colors: {
  custom: {
    50: '#625f96',
    500: '#15256b',
    950: '#000000',
  },
}

SCSS

$custom: #15256b;
$custom-light: #625f96;
$custom-dark: #000000;

JSON

{
  "hex": "#15256b",
  "rgb": {
    "r": 21,
    "g": 37,
    "b": 107
  },
  "hsl": {
    "h": 228.837,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.30231,
    "c": 0.12329,
    "h": 268
  },
  "luminance": 0.02544
}

Semantic roles & 50–950 ramp

primary

#15256B

secondary

#A28E3A

accent

#CA3EEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #15256B

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

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