#151D4F#151D4F

#151D4F is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.8% C 0.092 H 271.5°. Best body text is #FFFFFF at 15.90:1 contrast (WCAG AA passes).

Color values

HEX	#151D4F
RGB	rgb(21, 29, 79)
HSL	hsl(232, 58%, 20%)
HSV	hsv(232, 73%, 31%)
CMYK	cmyk(73.4%, 63.3%, 0%, 69%)
CIE-LAB	lab(13.25, 15.55, -31.89)
CIE-LCH	lch(13.25, 35.48, 296.00°)
OKLab	oklab(25.82% 0.0024 -0.0918)
OKLCH	oklch(25.82% 0.092 271.5)
XYZ	xyz(2.1594, 1.6025, 7.5911)
Luminance	0.0160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D4F #4F4715

analogous

#153A4F #151D4F #2A154F

triadic

#151D4F #4F151D #1D4F15

tetradic

#151D4F #4F153A #4F4715 #154F2A

square

#151D4F #4F153A #4F4715 #154F2A

split-complementary

#151D4F #4F2A15 #3A4F15

monochromatic

#060918 #080B1F #151D4F #222F7F #2F40B0

Accessibility & contrast

On white

15.90

#151D4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#151D4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D4F

15.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D4F	#FFFFFF	#000000	##FFFFFF
##151D4F	1.00	15.90	1.32	15.90
#FFFFFF	15.90	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002551

Deuteranopia (green-blind)

#00204E

Tritanopia (blue-blind)

#002932

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #151d4f;
/* rgb */ color: rgb(21, 29, 79);
/* oklch */ color: oklch(25.8% 0.092 271.5);

Tailwind

colors: {
  custom: {
    50: '#5b5881',
    500: '#151d4f',
    950: '#000000',
  },
}

SCSS

$custom: #151d4f;
$custom-light: #5b5881;
$custom-dark: #000000;

JSON

{
  "hex": "#151d4f",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 79
  },
  "hsl": {
    "h": 231.724,
    "s": 58,
    "l": 19.608
  },
  "oklch": {
    "l": 0.25815,
    "c": 0.09185,
    "h": 271.5
  },
  "luminance": 0.01603
}

Semantic roles & 50–950 ramp

primary

#151D4F

secondary

#877C39

accent

#CC47E1

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #151D4F

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

Preview Lab → · Contrast checker → · Palette generator →