#15187B#15187B

#15187B is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.7% C 0.160 H 270.1°. Best body text is #FFFFFF at 14.50:1 contrast (WCAG AA passes).

Color values

HEX	#15187B
RGB	rgb(21, 24, 123)
HSL	hsl(238, 71%, 28%)
HSV	hsv(238, 83%, 48%)
CMYK	cmyk(82.9%, 80.5%, 0%, 51.8%)
CIE-LAB	lab(16.71, 35.91, -55.26)
CIE-LCH	lch(16.71, 65.90, 303.02°)
OKLab	oklab(29.73% 0.0004 -0.16)
OKLCH	oklch(29.73% 0.16 270.1)
XYZ	xyz(4.2098, 2.2423, 18.9460)
Luminance	0.0224 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15187B #7B7815

analogous

#154B7B #15187B #45157B

triadic

#15187B #7B1518 #187B15

tetradic

#15187B #7B154B #7B7815 #157B45

square

#15187B #7B154B #7B7815 #157B45

split-complementary

#15187B #7B4515 #4B7B15

monochromatic

#04051A #0C0E47 #15187B #1E22AF #2F34DB

Accessibility & contrast

On white

14.50

#15187B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#15187B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15187B

14.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15187B	#FFFFFF	#000000	##FFFFFF
##15187B	1.00	14.50	1.45	14.50
#FFFFFF	14.50	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7E

Deuteranopia (green-blind)

#002479

Tritanopia (blue-blind)

#003649

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #15187b;
/* rgb */ color: rgb(21, 24, 123);
/* oklch */ color: oklch(29.7% 0.160 270.1);

Tailwind

colors: {
  custom: {
    50: '#6857a2',
    500: '#15187b',
    950: '#000000',
  },
}

SCSS

$custom: #15187b;
$custom-light: #6857a2;
$custom-dark: #000000;

JSON

{
  "hex": "#15187b",
  "rgb": {
    "r": 21,
    "g": 24,
    "b": 123
  },
  "hsl": {
    "h": 238.235,
    "s": 70.833,
    "l": 28.235
  },
  "oklch": {
    "l": 0.29733,
    "c": 0.16004,
    "h": 270.1
  },
  "luminance": 0.02243
}

Semantic roles & 50–950 ramp

primary

#15187B

secondary

#B0AD3B

accent

#E83AEE

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #15187B

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

Preview Lab → · Contrast checker → · Palette generator →