#151D5A#151D5A

#151D5A is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.9% C 0.109 H 271.2°. Best body text is #FFFFFF at 15.50:1 contrast (WCAG AA passes).

Color values

HEX	#151D5A
RGB	rgb(21, 29, 90)
HSL	hsl(233, 62%, 22%)
HSV	hsv(233, 77%, 35%)
CMYK	cmyk(76.7%, 67.8%, 0%, 64.7%)
CIE-LAB	lab(14.27, 20.07, -37.68)
CIE-LCH	lch(14.27, 42.70, 298.05°)
OKLab	oklab(26.89% 0.0023 -0.1088)
OKLCH	oklch(26.89% 0.109 271.2)
XYZ	xyz(2.5935, 1.7761, 9.8770)
Luminance	0.0178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D5A #5A5215

analogous

#15405A #151D5A #30155A

triadic

#151D5A #5A151D #1D5A15

tetradic

#151D5A #5A1540 #5A5215 #155A30

square

#151D5A #5A1540 #5A5215 #155A30

split-complementary

#151D5A #5A3015 #405A15

monochromatic

#060819 #090D28 #151D5A #212D8C #2C3DBD

Accessibility & contrast

On white

15.50

#151D5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#151D5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D5A

15.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D5A	#FFFFFF	#000000	##FFFFFF
##151D5A	1.00	15.50	1.36	15.50
#FFFFFF	15.50	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00275C

Deuteranopia (green-blind)

#002159

Tritanopia (blue-blind)

#002D38

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #151d5a;
/* rgb */ color: rgb(21, 29, 90);
/* oklch */ color: oklch(26.9% 0.109 271.2);

Tailwind

colors: {
  custom: {
    50: '#5e5889',
    500: '#151d5a',
    950: '#000000',
  },
}

SCSS

$custom: #151d5a;
$custom-light: #5e5889;
$custom-dark: #000000;

JSON

{
  "hex": "#151d5a",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 90
  },
  "hsl": {
    "h": 233.043,
    "s": 62.162,
    "l": 21.765
  },
  "oklch": {
    "l": 0.26889,
    "c": 0.10884,
    "h": 271.2
  },
  "luminance": 0.01776
}

Semantic roles & 50–950 ramp

primary

#151D5A

secondary

#928739

accent

#D243E5

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #151D5A

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

Preview Lab → · Contrast checker → · Palette generator →