#1D3E98#1D3E98

#1D3E98 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.9% C 0.153 H 264.9°. Best body text is #FFFFFF at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#1D3E98
RGB	rgb(29, 62, 152)
HSL	hsl(224, 68%, 35%)
HSV	hsv(224, 81%, 60%)
CMYK	cmyk(80.9%, 59.2%, 0%, 40.4%)
CIE-LAB	lab(29.34, 22.71, -52.59)
CIE-LCH	lch(29.34, 57.29, 293.36°)
OKLab	oklab(39.92% -0.0137 -0.1519)
OKLCH	oklch(39.92% 0.153 264.9)
XYZ	xyz(7.8948, 5.9725, 30.4364)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3E98 #98771D

analogous

#1D7C98 #1D3E98 #391D98

triadic

#1D3E98 #981D3E #3E981D

tetradic

#1D3E98 #981D7C #98771D #1D9839

square

#1D3E98 #981D7C #98771D #1D9839

split-complementary

#1D3E98 #98391D #7C981D

monochromatic

#091431 #132965 #1D3E98 #2753CB #5277DE

Accessibility & contrast

On white

9.57

#1D3E98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#1D3E98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3E98

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3E98	#FFFFFF	#000000	##FFFFFF
##1D3E98	1.00	9.57	2.19	9.57
#FFFFFF	9.57	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9B

Deuteranopia (green-blind)

#004096

Tritanopia (blue-blind)

#005565

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1d3e98;
/* rgb */ color: rgb(29, 62, 152);
/* oklch */ color: oklch(39.9% 0.153 264.9);

Tailwind

colors: {
  custom: {
    50: '#6e72b7',
    500: '#1d3e98',
    950: '#000000',
  },
}

SCSS

$custom: #1d3e98;
$custom-light: #6e72b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3e98",
  "rgb": {
    "r": 29,
    "g": 62,
    "b": 152
  },
  "hsl": {
    "h": 223.902,
    "s": 67.956,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39924,
    "c": 0.15257,
    "h": 264.9
  },
  "luminance": 0.05973
}

Semantic roles & 50–950 ramp

primary

#1D3E98

secondary

#C1A350

accent

#BC3DEB

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1D3E98

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

Preview Lab → · Contrast checker → · Palette generator →