#1D3D9F#1D3D9F

#1D3D9F is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.163 H 265.5°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#1D3D9F
RGB	rgb(29, 61, 159)
HSL	hsl(225, 69%, 37%)
HSV	hsv(225, 82%, 62%)
CMYK	cmyk(81.8%, 61.6%, 0%, 37.6%)
CIE-LAB	lab(29.67, 26.16, -56.32)
CIE-LCH	lch(29.67, 62.10, 294.91°)
OKLab	oklab(40.35% -0.0128 -0.1629)
OKLCH	oklch(40.35% 0.163 265.5)
XYZ	xyz(8.4312, 6.1009, 33.5274)
Luminance	0.0610 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3D9F #9F7F1D

analogous

#1D7E9F #1D3D9F #3E1D9F

triadic

#1D3D9F #9F1D3D #3D9F1D

tetradic

#1D3D9F #9F1D7E #9F7F1D #1D9F3E

square

#1D3D9F #9F1D7E #9F7F1D #1D9F3E

split-complementary

#1D3D9F #9F3E1D #7E9F1D

monochromatic

#0A1537 #14296B #1D3D9F #2651D3 #5678E0

Accessibility & contrast

On white

9.46

#1D3D9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#1D3D9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3D9F

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3D9F	#FFFFFF	#000000	##FFFFFF
##1D3D9F	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA2

Deuteranopia (green-blind)

#00409D

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1d3d9f;
/* rgb */ color: rgb(29, 61, 159);
/* oklch */ color: oklch(40.3% 0.163 265.5);

Tailwind

colors: {
  custom: {
    50: '#7072bc',
    500: '#1d3d9f',
    950: '#000000',
  },
}

SCSS

$custom: #1d3d9f;
$custom-light: #7072bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3d9f",
  "rgb": {
    "r": 29,
    "g": 61,
    "b": 159
  },
  "hsl": {
    "h": 225.231,
    "s": 69.149,
    "l": 36.863
  },
  "oklch": {
    "l": 0.40349,
    "c": 0.16342,
    "h": 265.5
  },
  "luminance": 0.06102
}

Semantic roles & 50–950 ramp

primary

#1D3D9F

secondary

#C4A854

accent

#C13CEC

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1D3D9F

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

Preview Lab → · Contrast checker → · Palette generator →