#1D1171#1D1171

#1D1171 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.1% C 0.152 H 276.0°. Best body text is #FFFFFF at 15.32:1 contrast (WCAG AA passes).

Color values

HEX	#1D1171
RGB	rgb(29, 17, 113)
HSL	hsl(248, 74%, 25%)
HSV	hsv(248, 85%, 44%)
CMYK	cmyk(74.3%, 85%, 0%, 55.7%)
CIE-LAB	lab(14.70, 36.92, -52.13)
CIE-LCH	lch(14.70, 63.88, 305.31°)
OKLab	oklab(28.11% 0.0159 -0.1507)
OKLCH	oklch(28.11% 0.152 276)
XYZ	xyz(3.6868, 1.8540, 15.7831)
Luminance	0.0185 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1171 #657111

analogous

#113571 #1D1171 #4D1171

triadic

#1D1171 #711D11 #11711D

tetradic

#1D1171 #711135 #657111 #11714D

square

#1D1171 #711135 #657111 #11714D

split-complementary

#1D1171 #714D11 #357111

monochromatic

#07041B #0F093C #1D1171 #2B19A6 #3821DB

Accessibility & contrast

On white

15.32

#1D1171 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#1D1171 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1171

15.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1171	#FFFFFF	#000000	##FFFFFF
##1D1171	1.00	15.32	1.37	15.32
#FFFFFF	15.32	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002974

Deuteranopia (green-blind)

#00216F

Tritanopia (blue-blind)

#002F42

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1d1171;
/* rgb */ color: rgb(29, 17, 113);
/* oklch */ color: oklch(28.1% 0.152 276.0);

Tailwind

colors: {
  custom: {
    50: '#68529b',
    500: '#1d1171',
    950: '#000000',
  },
}

SCSS

$custom: #1d1171;
$custom-light: #68529b;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1171",
  "rgb": {
    "r": 29,
    "g": 17,
    "b": 113
  },
  "hsl": {
    "h": 247.5,
    "s": 73.846,
    "l": 25.49
  },
  "oklch": {
    "l": 0.28113,
    "c": 0.15151,
    "h": 276
  },
  "luminance": 0.01854
}

Semantic roles & 50–950 ramp

primary

#1D1171

secondary

#9AA836

accent

#F137D9

background

#F6F4F9

surface

#ECE7F2

border

#C7C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #1D1171

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

Preview Lab → · Contrast checker → · Palette generator →