#1D319A#1D319A

#1D319A is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.6% C 0.171 H 268.0°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#1D319A
RGB	rgb(29, 49, 154)
HSL	hsl(230, 68%, 36%)
HSV	hsv(230, 81%, 60%)
CMYK	cmyk(81.2%, 68.2%, 0%, 39.6%)
CIE-LAB	lab(26.13, 32.26, -59.08)
CIE-LCH	lch(26.13, 67.31, 298.64°)
OKLab	oklab(37.6% -0.0061 -0.1711)
OKLCH	oklch(37.6% 0.171 268)
XYZ	xyz(7.4357, 4.7901, 31.0983)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D319A #9A861D

analogous

#1D6F9A #1D319A #471D9A

triadic

#1D319A #9A1D31 #319A1D

tetradic

#1D319A #9A1D6F #9A861D #1D9A47

square

#1D319A #9A1D6F #9A861D #1D9A47

split-complementary

#1D319A #9A471D #6F9A1D

monochromatic

#0A1033 #132166 #1D319A #2741CE #5369DF

Accessibility & contrast

On white

10.72

#1D319A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#1D319A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D319A

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D319A	#FFFFFF	#000000	##FFFFFF
##1D319A	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00449D

Deuteranopia (green-blind)

#003898

Tritanopia (blue-blind)

#004E61

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1d319a;
/* rgb */ color: rgb(29, 49, 154);
/* oklch */ color: oklch(37.6% 0.171 268.0);

Tailwind

colors: {
  custom: {
    50: '#7069b9',
    500: '#1d319a',
    950: '#000000',
  },
}

SCSS

$custom: #1d319a;
$custom-light: #7069b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d319a",
  "rgb": {
    "r": 29,
    "g": 49,
    "b": 154
  },
  "hsl": {
    "h": 230.4,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.376,
    "c": 0.1712,
    "h": 268
  },
  "luminance": 0.04791
}

Semantic roles & 50–950 ramp

primary

#1D319A

secondary

#C2B051

accent

#CF3DEB

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1D319A

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

Preview Lab → · Contrast checker → · Palette generator →