#1F3E90#1F3E90

#1F3E90 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.3% C 0.141 H 264.9°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#1F3E90
RGB	rgb(31, 62, 144)
HSL	hsl(224, 65%, 34%)
HSV	hsv(224, 78%, 56%)
CMYK	cmyk(78.5%, 56.9%, 0%, 43.5%)
CIE-LAB	lab(28.77, 19.75, -48.62)
CIE-LCH	lch(28.77, 52.48, 292.11°)
OKLab	oklab(39.31% -0.0126 -0.1403)
OKLCH	oklch(39.31% 0.141 264.9)
XYZ	xyz(7.3200, 5.7493, 27.1041)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3E90 #90711F

analogous

#1F7790 #1F3E90 #391F90

triadic

#1F3E90 #901F3E #3E901F

tetradic

#1F3E90 #901F77 #90711F #1F9039

square

#1F3E90 #901F77 #90711F #1F9039

split-complementary

#1F3E90 #90391F #77901F

monochromatic

#09132B #14285E #1F3E90 #2A54C2 #5076D9

Accessibility & contrast

On white

9.77

#1F3E90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1F3E90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3E90

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3E90	#FFFFFF	#000000	##FFFFFF
##1F3E90	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004993

Deuteranopia (green-blind)

#003F8E

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1f3e90;
/* rgb */ color: rgb(31, 62, 144);
/* oklch */ color: oklch(39.3% 0.141 264.9);

Tailwind

colors: {
  custom: {
    50: '#6d72b1',
    500: '#1f3e90',
    950: '#000000',
  },
}

SCSS

$custom: #1f3e90;
$custom-light: #6d72b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3e90",
  "rgb": {
    "r": 31,
    "g": 62,
    "b": 144
  },
  "hsl": {
    "h": 223.54,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.39312,
    "c": 0.14081,
    "h": 264.9
  },
  "luminance": 0.0575
}

Semantic roles & 50–950 ramp

primary

#1F3E90

secondary

#BC9E4E

accent

#BA40E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1F3E90

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

Preview Lab → · Contrast checker → · Palette generator →