#1D3D9E#1D3D9E

#1D3D9E is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.162 H 265.4°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#1D3D9E
RGB	rgb(29, 61, 158)
HSL	hsl(225, 69%, 37%)
HSV	hsv(225, 82%, 62%)
CMYK	cmyk(81.6%, 61.4%, 0%, 38%)
CIE-LAB	lab(29.58, 25.76, -55.86)
CIE-LCH	lch(29.58, 61.51, 294.76°)
OKLab	oklab(40.26% -0.0129 -0.1615)
OKLCH	oklch(40.26% 0.162 265.4)
XYZ	xyz(8.3448, 6.0663, 33.0722)
Luminance	0.0607 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3D9E #9E7E1D

analogous

#1D7E9E #1D3D9E #3D1D9E

triadic

#1D3D9E #9E1D3D #3D9E1D

tetradic

#1D3D9E #9E1D7E #9E7E1D #1D9E3D

square

#1D3D9E #9E1D7E #9E7E1D #1D9E3D

split-complementary

#1D3D9E #9E3D1D #7E9E1D

monochromatic

#0A1537 #14296A #1D3D9E #2651D2 #5678E0

Accessibility & contrast

On white

9.49

#1D3D9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1D3D9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3D9E

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3D9E	#FFFFFF	#000000	##FFFFFF
##1D3D9E	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA1

Deuteranopia (green-blind)

#00409C

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1d3d9e;
/* rgb */ color: rgb(29, 61, 158);
/* oklch */ color: oklch(40.3% 0.162 265.4);

Tailwind

colors: {
  custom: {
    50: '#7072bc',
    500: '#1d3d9e',
    950: '#000000',
  },
}

SCSS

$custom: #1d3d9e;
$custom-light: #7072bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3d9e",
  "rgb": {
    "r": 29,
    "g": 61,
    "b": 158
  },
  "hsl": {
    "h": 225.116,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.40258,
    "c": 0.16205,
    "h": 265.4
  },
  "luminance": 0.06067
}

Semantic roles & 50–950 ramp

primary

#1D3D9E

secondary

#C3A854

accent

#C03CEC

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1D3D9E

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

Preview Lab → · Contrast checker → · Palette generator →