#1F3D86#1F3D86

#1F3D86 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.3% C 0.128 H 264.3°. Best body text is #FFFFFF at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#1F3D86
RGB	rgb(31, 61, 134)
HSL	hsl(223, 62%, 32%)
HSV	hsv(223, 77%, 53%)
CMYK	cmyk(76.9%, 54.5%, 0%, 47.5%)
CIE-LAB	lab(27.71, 16.45, -44.16)
CIE-LCH	lch(27.71, 47.12, 290.42°)
OKLab	oklab(38.26% -0.0126 -0.1272)
OKLCH	oklch(38.26% 0.128 264.3)
XYZ	xyz(6.5354, 5.3493, 23.2377)
Luminance	0.0535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3D86 #86681F

analogous

#1F7186 #1F3D86 #341F86

triadic

#1F3D86 #861F3D #3D861F

tetradic

#1F3D86 #861F71 #86681F #1F8634

square

#1F3D86 #861F71 #86681F #1F8634

split-complementary

#1F3D86 #86341F #71861F

monochromatic

#081023 #142654 #1F3D86 #2A54B8 #4A73D5

Accessibility & contrast

On white

10.14

#1F3D86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#1F3D86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3D86

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3D86	#FFFFFF	#000000	##FFFFFF
##1F3D86	1.00	10.14	2.07	10.14
#FFFFFF	10.14	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#084689

Deuteranopia (green-blind)

#003D85

Tritanopia (blue-blind)

#004F5B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1f3d86;
/* rgb */ color: rgb(31, 61, 134);
/* oklch */ color: oklch(38.3% 0.128 264.3);

Tailwind

colors: {
  custom: {
    50: '#6b72aa',
    500: '#1f3d86',
    950: '#000000',
  },
}

SCSS

$custom: #1f3d86;
$custom-light: #6b72aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3d86",
  "rgb": {
    "r": 31,
    "g": 61,
    "b": 134
  },
  "hsl": {
    "h": 222.524,
    "s": 62.424,
    "l": 32.353
  },
  "oklch": {
    "l": 0.38262,
    "c": 0.12778,
    "h": 264.3
  },
  "luminance": 0.0535
}

Semantic roles & 50–950 ramp

primary

#1F3D86

secondary

#B89749

accent

#B642E5

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1F3D86

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

Preview Lab → · Contrast checker → · Palette generator →