#1D3C98#1D3C98

#1D3C98 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.5% C 0.155 H 265.4°. Best body text is #FFFFFF at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#1D3C98
RGB	rgb(29, 60, 152)
HSL	hsl(225, 68%, 35%)
HSV	hsv(225, 81%, 60%)
CMYK	cmyk(80.9%, 60.5%, 0%, 40.4%)
CIE-LAB	lab(28.80, 24.08, -53.48)
CIE-LCH	lch(28.80, 58.66, 294.24°)
OKLab	oklab(39.52% -0.0124 -0.1546)
OKLCH	oklch(39.52% 0.155 265.4)
XYZ	xyz(7.7880, 5.7590, 30.4008)
Luminance	0.0576 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3C98 #98791D

analogous

#1D7998 #1D3C98 #3B1D98

triadic

#1D3C98 #981D3C #3C981D

tetradic

#1D3C98 #981D79 #98791D #1D983B

square

#1D3C98 #981D79 #98791D #1D983B

split-complementary

#1D3C98 #983B1D #79981D

monochromatic

#091331 #132865 #1D3C98 #2750CB #5275DE

Accessibility & contrast

On white

9.76

#1D3C98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1D3C98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3C98

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3C98	#FFFFFF	#000000	##FFFFFF
##1D3C98	1.00	9.76	2.15	9.76
#FFFFFF	9.76	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9B

Deuteranopia (green-blind)

#003E96

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1d3c98;
/* rgb */ color: rgb(29, 60, 152);
/* oklch */ color: oklch(39.5% 0.155 265.4);

Tailwind

colors: {
  custom: {
    50: '#6f71b7',
    500: '#1d3c98',
    950: '#000000',
  },
}

SCSS

$custom: #1d3c98;
$custom-light: #6f71b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3c98",
  "rgb": {
    "r": 29,
    "g": 60,
    "b": 152
  },
  "hsl": {
    "h": 224.878,
    "s": 67.956,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39515,
    "c": 0.15509,
    "h": 265.4
  },
  "luminance": 0.0576
}

Semantic roles & 50–950 ramp

primary

#1D3C98

secondary

#C1A450

accent

#BF3DEB

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #1D3C98

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

Preview Lab → · Contrast checker → · Palette generator →