#151D5F#151D5F

#151D5F is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.4% C 0.116 H 271.0°. Best body text is #FFFFFF at 15.30:1 contrast (WCAG AA passes).

Color values

HEX	#151D5F
RGB	rgb(21, 29, 95)
HSL	hsl(234, 64%, 23%)
HSV	hsv(234, 78%, 37%)
CMYK	cmyk(77.9%, 69.5%, 0%, 62.7%)
CIE-LAB	lab(14.76, 22.10, -40.22)
CIE-LCH	lch(14.76, 45.89, 298.78°)
OKLab	oklab(27.4% 0.002 -0.1163)
OKLCH	oklch(27.4% 0.116 271)
XYZ	xyz(2.8135, 1.8641, 11.0358)
Luminance	0.0186 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D5F #5F5715

analogous

#15425F #151D5F #32155F

triadic

#151D5F #5F151D #1D5F15

tetradic

#151D5F #5F1542 #5F5715 #155F32

square

#151D5F #5F1542 #5F5715 #155F32

split-complementary

#151D5F #5F3215 #425F15

monochromatic

#060819 #0A0E2D #151D5F #202C91 #2B3CC3

Accessibility & contrast

On white

15.30

#151D5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#151D5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D5F

15.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D5F	#FFFFFF	#000000	##FFFFFF
##151D5F	1.00	15.30	1.37	15.30
#FFFFFF	15.30	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002961

Deuteranopia (green-blind)

#00225E

Tritanopia (blue-blind)

#002E3B

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #151d5f;
/* rgb */ color: rgb(21, 29, 95);
/* oklch */ color: oklch(27.4% 0.116 271.0);

Tailwind

colors: {
  custom: {
    50: '#5f598d',
    500: '#151d5f',
    950: '#000000',
  },
}

SCSS

$custom: #151d5f;
$custom-light: #5f598d;
$custom-dark: #000000;

JSON

{
  "hex": "#151d5f",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 95
  },
  "hsl": {
    "h": 233.514,
    "s": 63.793,
    "l": 22.745
  },
  "oklch": {
    "l": 0.27401,
    "c": 0.11628,
    "h": 271
  },
  "luminance": 0.01864
}

Semantic roles & 50–950 ramp

primary

#151D5F

secondary

#968C3A

accent

#D541E7

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #151D5F

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

Preview Lab → · Contrast checker → · Palette generator →