#151C7B#151C7B

#151C7B is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.3% C 0.156 H 269.6°. Best body text is #FFFFFF at 14.15:1 contrast (WCAG AA passes).

Color values

HEX	#151C7B
RGB	rgb(21, 28, 123)
HSL	hsl(236, 71%, 28%)
HSV	hsv(236, 83%, 48%)
CMYK	cmyk(82.9%, 77.2%, 0%, 51.8%)
CIE-LAB	lab(17.55, 33.52, -53.87)
CIE-LCH	lch(17.55, 63.45, 301.90°)
OKLab	oklab(30.33% -0.001 -0.156)
OKLCH	oklch(30.33% 0.156 269.6)
XYZ	xyz(4.2984, 2.4195, 18.9755)
Luminance	0.0242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C7B #7B7415

analogous

#154F7B #151C7B #41157B

triadic

#151C7B #7B151C #1C7B15

tetradic

#151C7B #7B154F #7B7415 #157B41

square

#151C7B #7B154F #7B7415 #157B41

split-complementary

#151C7B #7B4115 #4F7B15

monochromatic

#04061A #0C1047 #151C7B #1E28AF #2F3BDB

Accessibility & contrast

On white

14.15

#151C7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#151C7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C7B

14.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C7B	#FFFFFF	#000000	##FFFFFF
##151C7B	1.00	14.15	1.48	14.15
#FFFFFF	14.15	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307E

Deuteranopia (green-blind)

#002679

Tritanopia (blue-blind)

#00384A

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #151c7b;
/* rgb */ color: rgb(21, 28, 123);
/* oklch */ color: oklch(30.3% 0.156 269.6);

Tailwind

colors: {
  custom: {
    50: '#6759a2',
    500: '#151c7b',
    950: '#000000',
  },
}

SCSS

$custom: #151c7b;
$custom-light: #6759a2;
$custom-dark: #000000;

JSON

{
  "hex": "#151c7b",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 123
  },
  "hsl": {
    "h": 235.882,
    "s": 70.833,
    "l": 28.235
  },
  "oklch": {
    "l": 0.30327,
    "c": 0.15605,
    "h": 269.6
  },
  "luminance": 0.0242
}

Semantic roles & 50–950 ramp

primary

#151C7B

secondary

#B0A83B

accent

#E13AEE

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #151C7B

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

Preview Lab → · Contrast checker → · Palette generator →