#1D3F94#1D3F94

#1D3F94 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.8% C 0.146 H 264.2°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#1D3F94
RGB	rgb(29, 63, 148)
HSL	hsl(223, 67%, 35%)
HSV	hsv(223, 80%, 58%)
CMYK	cmyk(80.4%, 57.4%, 0%, 42%)
CIE-LAB	lab(29.29, 20.43, -50.23)
CIE-LCH	lch(29.29, 54.22, 292.14°)
OKLab	oklab(39.78% -0.0146 -0.145)
OKLCH	oklch(39.78% 0.146 264.2)
XYZ	xyz(7.6276, 5.9535, 28.7584)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3F94 #94721D

analogous

#1D7B94 #1D3F94 #361D94

triadic

#1D3F94 #941D3F #3F941D

tetradic

#1D3F94 #941D7B #94721D #1D9436

square

#1D3F94 #941D7B #94721D #1D9436

split-complementary

#1D3F94 #94361D #7B941D

monochromatic

#09132E #132961 #1D3F94 #2755C7 #4F77DC

Accessibility & contrast

On white

9.59

#1D3F94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#1D3F94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3F94

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3F94	#FFFFFF	#000000	##FFFFFF
##1D3F94	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B97

Deuteranopia (green-blind)

#004092

Tritanopia (blue-blind)

#005463

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1d3f94;
/* rgb */ color: rgb(29, 63, 148);
/* oklch */ color: oklch(39.8% 0.146 264.2);

Tailwind

colors: {
  custom: {
    50: '#6d73b4',
    500: '#1d3f94',
    950: '#000000',
  },
}

SCSS

$custom: #1d3f94;
$custom-light: #6d73b4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3f94",
  "rgb": {
    "r": 29,
    "g": 63,
    "b": 148
  },
  "hsl": {
    "h": 222.857,
    "s": 67.232,
    "l": 34.706
  },
  "oklch": {
    "l": 0.39785,
    "c": 0.14572,
    "h": 264.2
  },
  "luminance": 0.05954
}

Semantic roles & 50–950 ramp

primary

#1D3F94

secondary

#BF9F4E

accent

#B93EEA

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1D3F94

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

Preview Lab → · Contrast checker → · Palette generator →