#1D155F#1D155F

#1D155F is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.6% C 0.124 H 278.6°. Best body text is #FFFFFF at 15.85:1 contrast (WCAG AA passes).

Color values

HEX	#1D155F
RGB	rgb(29, 21, 95)
HSL	hsl(246, 64%, 23%)
HSV	hsv(246, 78%, 37%)
CMYK	cmyk(69.5%, 77.9%, 0%, 62.7%)
CIE-LAB	lab(13.37, 28.54, -42.47)
CIE-LCH	lch(13.37, 51.17, 303.90°)
OKLab	oklab(26.56% 0.0186 -0.1226)
OKLCH	oklch(26.56% 0.124 278.6)
XYZ	xyz(2.8398, 1.6235, 10.9880)
Luminance	0.0162 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D155F #575F15

analogous

#15325F #1D155F #42155F

triadic

#1D155F #5F1D15 #155F1D

tetradic

#1D155F #5F1532 #575F15 #155F42

square

#1D155F #5F1532 #575F15 #155F42

split-complementary

#1D155F #5F4215 #325F15

monochromatic

#080619 #0E0A2D #1D155F #2C2091 #3C2BC3

Accessibility & contrast

On white

15.85

#1D155F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#1D155F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D155F

15.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D155F	#FFFFFF	#000000	##FFFFFF
##1D155F	1.00	15.85	1.32	15.85
#FFFFFF	15.85	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002561

Deuteranopia (green-blind)

#001F5E

Tritanopia (blue-blind)

#002A38

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1d155f;
/* rgb */ color: rgb(29, 21, 95);
/* oklch */ color: oklch(26.6% 0.124 278.6);

Tailwind

colors: {
  custom: {
    50: '#63538d',
    500: '#1d155f',
    950: '#000000',
  },
}

SCSS

$custom: #1d155f;
$custom-light: #63538d;
$custom-dark: #000000;

JSON

{
  "hex": "#1d155f",
  "rgb": {
    "r": 29,
    "g": 21,
    "b": 95
  },
  "hsl": {
    "h": 246.486,
    "s": 63.793,
    "l": 22.745
  },
  "oklch": {
    "l": 0.26557,
    "c": 0.12401,
    "h": 278.6
  },
  "luminance": 0.01624
}

Semantic roles & 50–950 ramp

primary

#1D155F

secondary

#8C963A

accent

#E741D5

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1D155F

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

Preview Lab → · Contrast checker → · Palette generator →