#1D359C#1D359C

#1D359C is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.5% C 0.169 H 267.2°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#1D359C
RGB	rgb(29, 53, 156)
HSL	hsl(229, 69%, 36%)
HSV	hsv(229, 81%, 61%)
CMYK	cmyk(81.4%, 66%, 0%, 38.8%)
CIE-LAB	lab(27.32, 30.37, -58.35)
CIE-LCH	lch(27.32, 65.78, 297.50°)
OKLab	oklab(38.53% -0.0082 -0.1689)
OKLCH	oklch(38.53% 0.169 267.2)
XYZ	xyz(7.7785, 5.2068, 32.0411)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D359C #9C841D

analogous

#1D759C #1D359C #441D9C

triadic

#1D359C #9C1D35 #359C1D

tetradic

#1D359C #9C1D75 #9C841D #1D9C44

square

#1D359C #9C1D75 #9C841D #1D9C44

split-complementary

#1D359C #9C441D #759C1D

monochromatic

#0A1235 #132368 #1D359C #2747D0 #546EDF

Accessibility & contrast

On white

10.29

#1D359C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#1D359C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D359C

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D359C	#FFFFFF	#000000	##FFFFFF
##1D359C	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479F

Deuteranopia (green-blind)

#003B9A

Tritanopia (blue-blind)

#005063

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1d359c;
/* rgb */ color: rgb(29, 53, 156);
/* oklch */ color: oklch(38.5% 0.169 267.2);

Tailwind

colors: {
  custom: {
    50: '#706cba',
    500: '#1d359c',
    950: '#000000',
  },
}

SCSS

$custom: #1d359c;
$custom-light: #706cba;
$custom-dark: #000000;

JSON

{
  "hex": "#1d359c",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 156
  },
  "hsl": {
    "h": 228.661,
    "s": 68.649,
    "l": 36.275
  },
  "oklch": {
    "l": 0.38528,
    "c": 0.16913,
    "h": 267.2
  },
  "luminance": 0.05208
}

Semantic roles & 50–950 ramp

primary

#1D359C

secondary

#C2AD52

accent

#CA3CEB

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1D359C

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

Preview Lab → · Contrast checker → · Palette generator →