#151E4B#151E4B

#151E4B is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.7% C 0.084 H 270.8°. Best body text is #FFFFFF at 15.92:1 contrast (WCAG AA passes).

Color values

HEX	#151E4B
RGB	rgb(21, 30, 75)
HSL	hsl(230, 56%, 19%)
HSV	hsv(230, 72%, 29%)
CMYK	cmyk(72%, 60%, 0%, 70.6%)
CIE-LAB	lab(13.20, 13.14, -29.21)
CIE-LCH	lch(13.20, 32.03, 294.22°)
OKLab	oklab(25.68% 0.0012 -0.0839)
OKLCH	oklch(25.68% 0.084 270.8)
XYZ	xyz(2.0431, 1.5958, 6.8556)
Luminance	0.0160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.88

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151E4B #4B4215

analogous

#15394B #151E4B #27154B

triadic

#151E4B #4B151E #1E4B15

tetradic

#151E4B #4B1539 #4B4215 #154B27

square

#151E4B #4B1539 #4B4215 #154B27

split-complementary

#151E4B #4B2715 #394B15

monochromatic

#070A18 #080B1B #151E4B #22317B #3044AB

Accessibility & contrast

On white

15.92

#151E4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#151E4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151E4B

15.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151E4B	#FFFFFF	#000000	##FFFFFF
##151E4B	1.00	15.92	1.32	15.92
#FFFFFF	15.92	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01244D

Deuteranopia (green-blind)

#00204A

Tritanopia (blue-blind)

#002931

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #151e4b;
/* rgb */ color: rgb(21, 30, 75);
/* oklch */ color: oklch(25.7% 0.084 270.8);

Tailwind

colors: {
  custom: {
    50: '#5a597e',
    500: '#151e4b',
    950: '#000000',
  },
}

SCSS

$custom: #151e4b;
$custom-light: #5a597e;
$custom-dark: #000000;

JSON

{
  "hex": "#151e4b",
  "rgb": {
    "r": 21,
    "g": 30,
    "b": 75
  },
  "hsl": {
    "h": 230,
    "s": 56.25,
    "l": 18.824
  },
  "oklch": {
    "l": 0.25676,
    "c": 0.08394,
    "h": 270.8
  },
  "luminance": 0.01596
}

Semantic roles & 50–950 ramp

primary

#151E4B

secondary

#837739

accent

#C648E0

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #151E4B

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

Preview Lab → · Contrast checker → · Palette generator →