#151F4C#151F4C

#151F4C is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.0% C 0.084 H 270.1°. Best body text is #FFFFFF at 15.76:1 contrast (WCAG AA passes).

Color values

HEX	#151F4C
RGB	rgb(21, 31, 76)
HSL	hsl(229, 57%, 19%)
HSV	hsv(229, 72%, 30%)
CMYK	cmyk(72.4%, 59.2%, 0%, 70.2%)
CIE-LAB	lab(13.60, 12.80, -29.27)
CIE-LCH	lch(13.60, 31.94, 293.63°)
OKLab	oklab(26% 0.0002 -0.0841)
OKLCH	oklch(26% 0.084 270.1)
XYZ	xyz(2.1033, 1.6610, 7.0458)
Luminance	0.0166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F4C #4C4215

analogous

#153B4C #151F4C #27154C

triadic

#151F4C #4C151F #1F4C15

tetradic

#151F4C #4C153B #4C4215 #154C27

square

#151F4C #4C153B #4C4215 #154C27

split-complementary

#151F4C #4C2715 #3B4C15

monochromatic

#070A18 #080B1C #151F4C #22337C #2F46AC

Accessibility & contrast

On white

15.76

#151F4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#151F4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F4C

15.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F4C	#FFFFFF	#000000	##FFFFFF
##151F4C	1.00	15.76	1.33	15.76
#FFFFFF	15.76	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02254E

Deuteranopia (green-blind)

#00204B

Tritanopia (blue-blind)

#002A32

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #151f4c;
/* rgb */ color: rgb(21, 31, 76);
/* oklch */ color: oklch(26.0% 0.084 270.1);

Tailwind

colors: {
  custom: {
    50: '#5a5a7e',
    500: '#151f4c',
    950: '#000000',
  },
}

SCSS

$custom: #151f4c;
$custom-light: #5a5a7e;
$custom-dark: #000000;

JSON

{
  "hex": "#151f4c",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 76
  },
  "hsl": {
    "h": 229.091,
    "s": 56.701,
    "l": 19.02
  },
  "oklch": {
    "l": 0.25998,
    "c": 0.08407,
    "h": 270.1
  },
  "luminance": 0.01661
}

Semantic roles & 50–950 ramp

primary

#151F4C

secondary

#847639

accent

#C448E0

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #151F4C

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

Preview Lab → · Contrast checker → · Palette generator →