#1F3E85#1F3E85

#1F3E85 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.4% C 0.125 H 263.8°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#1F3E85
RGB	rgb(31, 62, 133)
HSL	hsl(222, 62%, 32%)
HSV	hsv(222, 77%, 52%)
CMYK	cmyk(76.7%, 53.4%, 0%, 47.8%)
CIE-LAB	lab(27.92, 15.35, -43.19)
CIE-LCH	lch(27.92, 45.84, 289.56°)
OKLab	oklab(38.4% -0.0136 -0.1243)
OKLCH	oklch(38.4% 0.125 263.8)
XYZ	xyz(6.5198, 5.4293, 22.8901)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3E85 #85661F

analogous

#1F7185 #1F3E85 #331F85

triadic

#1F3E85 #851F3E #3E851F

tetradic

#1F3E85 #851F71 #85661F #1F8533

square

#1F3E85 #851F71 #85661F #1F8533

split-complementary

#1F3E85 #85331F #71851F

monochromatic

#081022 #132753 #1F3E85 #2B55B7 #4A74D5

Accessibility & contrast

On white

10.07

#1F3E85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#1F3E85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3E85

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3E85	#FFFFFF	#000000	##FFFFFF
##1F3E85	1.00	10.07	2.09	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F4788

Deuteranopia (green-blind)

#003D84

Tritanopia (blue-blind)

#004F5B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1f3e85;
/* rgb */ color: rgb(31, 62, 133);
/* oklch */ color: oklch(38.4% 0.125 263.8);

Tailwind

colors: {
  custom: {
    50: '#6a72a9',
    500: '#1f3e85',
    950: '#000000',
  },
}

SCSS

$custom: #1f3e85;
$custom-light: #6a72a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3e85",
  "rgb": {
    "r": 31,
    "g": 62,
    "b": 133
  },
  "hsl": {
    "h": 221.765,
    "s": 62.195,
    "l": 32.157
  },
  "oklch": {
    "l": 0.38403,
    "c": 0.12501,
    "h": 263.8
  },
  "luminance": 0.0543
}

Semantic roles & 50–950 ramp

primary

#1F3E85

secondary

#B79649

accent

#B443E5

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1F3E85

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

Preview Lab → · Contrast checker → · Palette generator →