#1D359A#1D359A

#1D359A is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.3% C 0.166 H 267.2°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#1D359A
RGB	rgb(29, 53, 154)
HSL	hsl(228, 68%, 36%)
HSV	hsv(228, 81%, 60%)
CMYK	cmyk(81.2%, 65.6%, 0%, 39.6%)
CIE-LAB	lab(27.13, 29.61, -57.43)
CIE-LCH	lch(27.13, 64.62, 297.27°)
OKLab	oklab(38.33% -0.0082 -0.1663)
OKLCH	oklch(38.33% 0.166 267.2)
XYZ	xyz(7.6105, 5.1396, 31.1565)
Luminance	0.0514 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D359A #9A821D

analogous

#1D739A #1D359A #431D9A

triadic

#1D359A #9A1D35 #359A1D

tetradic

#1D359A #9A1D73 #9A821D #1D9A43

square

#1D359A #9A1D73 #9A821D #1D9A43

split-complementary

#1D359A #9A431D #739A1D

monochromatic

#0A1233 #132366 #1D359A #2747CE #536EDF

Accessibility & contrast

On white

10.35

#1D359A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#1D359A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D359A

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D359A	#FFFFFF	#000000	##FFFFFF
##1D359A	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469D

Deuteranopia (green-blind)

#003A98

Tritanopia (blue-blind)

#005062

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1d359a;
/* rgb */ color: rgb(29, 53, 154);
/* oklch */ color: oklch(38.3% 0.166 267.2);

Tailwind

colors: {
  custom: {
    50: '#706cb9',
    500: '#1d359a',
    950: '#000000',
  },
}

SCSS

$custom: #1d359a;
$custom-light: #706cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d359a",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 154
  },
  "hsl": {
    "h": 228.48,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.38333,
    "c": 0.16646,
    "h": 267.2
  },
  "luminance": 0.05141
}

Semantic roles & 50–950 ramp

primary

#1D359A

secondary

#C2AC51

accent

#CA3DEB

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1D359A

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

Preview Lab → · Contrast checker → · Palette generator →