#151B65#151B65

#151B65 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.7% C 0.127 H 271.2°. Best body text is #FFFFFF at 15.25:1 contrast (WCAG AA passes).

Color values

HEX	#151B65
RGB	rgb(21, 27, 101)
HSL	hsl(236, 66%, 24%)
HSV	hsv(236, 79%, 40%)
CMYK	cmyk(79.2%, 73.3%, 0%, 60.4%)
CIE-LAB	lab(14.86, 25.87, -44.03)
CIE-LCH	lch(14.86, 51.07, 300.43°)
OKLab	oklab(27.66% 0.0027 -0.1274)
OKLCH	oklch(27.66% 0.127 271.2)
XYZ	xyz(3.0494, 1.8826, 12.5121)
Luminance	0.0188 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B65 #655F15

analogous

#154365 #151B65 #371565

triadic

#151B65 #65151B #1B6515

tetradic

#151B65 #651543 #655F15 #156537

square

#151B65 #651543 #655F15 #156537

split-complementary

#151B65 #653715 #436515

monochromatic

#050719 #0A0D32 #151B65 #202998 #2A36CA

Accessibility & contrast

On white

15.25

#151B65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#151B65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B65

15.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B65	#FFFFFF	#000000	##FFFFFF
##151B65	1.00	15.25	1.38	15.25
#FFFFFF	15.25	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002967

Deuteranopia (green-blind)

#002264

Tritanopia (blue-blind)

#002F3D

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #151b65;
/* rgb */ color: rgb(21, 27, 101);
/* oklch */ color: oklch(27.7% 0.127 271.2);

Tailwind

colors: {
  custom: {
    50: '#615792',
    500: '#151b65',
    950: '#000000',
  },
}

SCSS

$custom: #151b65;
$custom-light: #615792;
$custom-dark: #000000;

JSON

{
  "hex": "#151b65",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 101
  },
  "hsl": {
    "h": 235.5,
    "s": 65.574,
    "l": 23.922
  },
  "oklch": {
    "l": 0.27664,
    "c": 0.12744,
    "h": 271.2
  },
  "luminance": 0.01883
}

Semantic roles & 50–950 ramp

primary

#151B65

secondary

#9C953A

accent

#DC3FE9

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #151B65

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

Preview Lab → · Contrast checker → · Palette generator →