#1D408C#1D408C

#1D408C is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.3% C 0.133 H 263.1°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#1D408C
RGB	rgb(29, 64, 140)
HSL	hsl(221, 66%, 33%)
HSV	hsv(221, 79%, 55%)
CMYK	cmyk(79.3%, 54.3%, 0%, 45.1%)
CIE-LAB	lab(28.96, 16.53, -45.86)
CIE-LCH	lch(28.96, 48.75, 289.82°)
OKLab	oklab(39.33% -0.016 -0.1321)
OKLCH	oklch(39.33% 0.133 263.1)
XYZ	xyz(7.0720, 5.8206, 25.5566)
Luminance	0.0582 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D408C #8C691D

analogous

#1D778C #1D408C #311D8C

triadic

#1D408C #8C1D40 #408C1D

tetradic

#1D408C #8C1D77 #8C691D #1D8C31

square

#1D408C #8C1D77 #8C691D #1D8C31

split-complementary

#1D408C #8C311D #778C1D

monochromatic

#081227 #122959 #1D408C #2857BF #4A77D9

Accessibility & contrast

On white

9.70

#1D408C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1D408C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D408C

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D408C	#FFFFFF	#000000	##FFFFFF
##1D408C	1.00	9.70	2.16	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#074A8F

Deuteranopia (green-blind)

#003F8A

Tritanopia (blue-blind)

#00535F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1d408c;
/* rgb */ color: rgb(29, 64, 140);
/* oklch */ color: oklch(39.3% 0.133 263.1);

Tailwind

colors: {
  custom: {
    50: '#6b74ae',
    500: '#1d408c',
    950: '#000000',
  },
}

SCSS

$custom: #1d408c;
$custom-light: #6b74ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d408c",
  "rgb": {
    "r": 29,
    "g": 64,
    "b": 140
  },
  "hsl": {
    "h": 221.081,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.39331,
    "c": 0.1331,
    "h": 263.1
  },
  "luminance": 0.05821
}

Semantic roles & 50–950 ramp

primary

#1D408C

secondary

#BC9849

accent

#B33FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1D408C

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

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