#1F3D90#1F3D90

#1F3D90 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.1% C 0.142 H 265.2°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#1F3D90
RGB	rgb(31, 61, 144)
HSL	hsl(224, 65%, 34%)
HSV	hsv(224, 78%, 56%)
CMYK	cmyk(78.5%, 57.6%, 0%, 43.5%)
CIE-LAB	lab(28.49, 20.44, -49.08)
CIE-LCH	lch(28.49, 53.16, 292.61°)
OKLab	oklab(39.1% -0.0118 -0.1416)
OKLCH	oklch(39.1% 0.142 265.2)
XYZ	xyz(7.2661, 5.6416, 27.0861)
Luminance	0.0564 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3D90 #90721F

analogous

#1F7690 #1F3D90 #3A1F90

triadic

#1F3D90 #901F3D #3D901F

tetradic

#1F3D90 #901F76 #90721F #1F903A

square

#1F3D90 #901F76 #90721F #1F903A

split-complementary

#1F3D90 #903A1F #76901F

monochromatic

#09122B #14285E #1F3D90 #2A52C2 #5075D9

Accessibility & contrast

On white

9.87

#1F3D90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#1F3D90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3D90

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3D90	#FFFFFF	#000000	##FFFFFF
##1F3D90	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004993

Deuteranopia (green-blind)

#003E8E

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1f3d90;
/* rgb */ color: rgb(31, 61, 144);
/* oklch */ color: oklch(39.1% 0.142 265.2);

Tailwind

colors: {
  custom: {
    50: '#6d72b1',
    500: '#1f3d90',
    950: '#000000',
  },
}

SCSS

$custom: #1f3d90;
$custom-light: #6d72b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3d90",
  "rgb": {
    "r": 31,
    "g": 61,
    "b": 144
  },
  "hsl": {
    "h": 224.071,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.391,
    "c": 0.1421,
    "h": 265.2
  },
  "luminance": 0.05642
}

Semantic roles & 50–950 ramp

primary

#1F3D90

secondary

#BC9F4E

accent

#BB40E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1F3D90

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

Preview Lab → · Contrast checker → · Palette generator →