#151B54#151B54

#151B54 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.9% C 0.103 H 272.4°. Best body text is #FFFFFF at 15.95:1 contrast (WCAG AA passes).

Color values

HEX	#151B54
RGB	rgb(21, 27, 84)
HSL	hsl(234, 60%, 21%)
HSV	hsv(234, 75%, 33%)
CMYK	cmyk(75%, 67.9%, 0%, 67.1%)
CIE-LAB	lab(13.13, 19.09, -35.49)
CIE-LCH	lch(13.13, 40.30, 298.28°)
OKLab	oklab(25.87% 0.0042 -0.1024)
OKLCH	oklch(25.87% 0.103 272.4)
XYZ	xyz(2.3009, 1.5832, 8.5701)
Luminance	0.0158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B54 #544E15

analogous

#153A54 #151B54 #2E1554

triadic

#151B54 #54151B #1B5415

tetradic

#151B54 #54153A #544E15 #15542E

square

#151B54 #54153A #544E15 #15542E

split-complementary

#151B54 #542E15 #3A5415

monochromatic

#060818 #090B23 #151B54 #212B85 #2D3AB6

Accessibility & contrast

On white

15.95

#151B54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#151B54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B54

15.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B54	#FFFFFF	#000000	##FFFFFF
##151B54	1.00	15.95	1.32	15.95
#FFFFFF	15.95	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002556

Deuteranopia (green-blind)

#001F53

Tritanopia (blue-blind)

#002A34

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #151b54;
/* rgb */ color: rgb(21, 27, 84);
/* oklch */ color: oklch(25.9% 0.103 272.4);

Tailwind

colors: {
  custom: {
    50: '#5c5785',
    500: '#151b54',
    950: '#000000',
  },
}

SCSS

$custom: #151b54;
$custom-light: #5c5785;
$custom-dark: #000000;

JSON

{
  "hex": "#151b54",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 84
  },
  "hsl": {
    "h": 234.286,
    "s": 60,
    "l": 20.588
  },
  "oklch": {
    "l": 0.25872,
    "c": 0.10251,
    "h": 272.4
  },
  "luminance": 0.01583
}

Semantic roles & 50–950 ramp

primary

#151B54

secondary

#8C8439

accent

#D445E3

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #151B54

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

Preview Lab → · Contrast checker → · Palette generator →