#1D409C#1D409C

#1D409C is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.7% C 0.156 H 264.5°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#1D409C
RGB	rgb(29, 64, 156)
HSL	hsl(223, 69%, 36%)
HSV	hsv(223, 81%, 61%)
CMYK	cmyk(81.4%, 59%, 0%, 38.8%)
CIE-LAB	lab(30.22, 22.93, -53.59)
CIE-LCH	lch(30.22, 58.29, 293.17°)
OKLab	oklab(40.69% -0.0148 -0.1548)
OKLCH	oklch(40.69% 0.156 264.5)
XYZ	xyz(8.3387, 6.3273, 32.2279)
Luminance	0.0633 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D409C #9C791D

analogous

#1D809C #1D409C #3A1D9C

triadic

#1D409C #9C1D40 #409C1D

tetradic

#1D409C #9C1D80 #9C791D #1D9C3A

square

#1D409C #9C1D80 #9C791D #1D9C3A

split-complementary

#1D409C #9C3A1D #809C1D

monochromatic

#0A1635 #132B68 #1D409C #2755D0 #547ADF

Accessibility & contrast

On white

9.27

#1D409C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#1D409C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D409C

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D409C	#FFFFFF	#000000	##FFFFFF
##1D409C	1.00	9.27	2.27	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9F

Deuteranopia (green-blind)

#00429A

Tritanopia (blue-blind)

#005767

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1d409c;
/* rgb */ color: rgb(29, 64, 156);
/* oklch */ color: oklch(40.7% 0.156 264.5);

Tailwind

colors: {
  custom: {
    50: '#6f74ba',
    500: '#1d409c',
    950: '#000000',
  },
}

SCSS

$custom: #1d409c;
$custom-light: #6f74ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1d409c",
  "rgb": {
    "r": 29,
    "g": 64,
    "b": 156
  },
  "hsl": {
    "h": 223.465,
    "s": 68.649,
    "l": 36.275
  },
  "oklch": {
    "l": 0.40688,
    "c": 0.15556,
    "h": 264.5
  },
  "luminance": 0.06328
}

Semantic roles & 50–950 ramp

primary

#1D409C

secondary

#C2A452

accent

#BB3CEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1D409C

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

Preview Lab → · Contrast checker → · Palette generator →