#151F5F#151F5F

#151F5F is a dark, moderate blue. Relative luminance 0.020; OKLCH L 27.8% C 0.114 H 270.2°. Best body text is #FFFFFF at 15.07:1 contrast (WCAG AA passes).

Color values

HEX	#151F5F
RGB	rgb(21, 31, 95)
HSL	hsl(232, 64%, 23%)
HSV	hsv(232, 78%, 37%)
CMYK	cmyk(77.9%, 67.4%, 0%, 62.7%)
CIE-LAB	lab(15.30, 20.66, -39.32)
CIE-LCH	lch(15.30, 44.42, 297.72°)
OKLab	oklab(27.8% 0.0005 -0.1136)
OKLCH	oklch(27.8% 0.114 270.2)
XYZ	xyz(2.8641, 1.9653, 11.0527)
Luminance	0.0197 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F5F #5F5515

analogous

#15445F #151F5F #30155F

triadic

#151F5F #5F151F #1F5F15

tetradic

#151F5F #5F1544 #5F5515 #155F30

square

#151F5F #5F1544 #5F5515 #155F30

split-complementary

#151F5F #5F3015 #445F15

monochromatic

#060819 #0A0F2D #151F5F #202F91 #2B40C3

Accessibility & contrast

On white

15.07

#151F5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#151F5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F5F

15.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F5F	#FFFFFF	#000000	##FFFFFF
##151F5F	1.00	15.07	1.39	15.07
#FFFFFF	15.07	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A61

Deuteranopia (green-blind)

#00235E

Tritanopia (blue-blind)

#00303B

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #151f5f;
/* rgb */ color: rgb(21, 31, 95);
/* oklch */ color: oklch(27.8% 0.114 270.2);

Tailwind

colors: {
  custom: {
    50: '#5f5a8d',
    500: '#151f5f',
    950: '#000000',
  },
}

SCSS

$custom: #151f5f;
$custom-light: #5f5a8d;
$custom-dark: #000000;

JSON

{
  "hex": "#151f5f",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 95
  },
  "hsl": {
    "h": 231.892,
    "s": 63.793,
    "l": 22.745
  },
  "oklch": {
    "l": 0.27803,
    "c": 0.11362,
    "h": 270.2
  },
  "luminance": 0.01966
}

Semantic roles & 50–950 ramp

primary

#151F5F

secondary

#968A3A

accent

#D041E7

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #151F5F

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

Preview Lab → · Contrast checker → · Palette generator →