#1F4593#1F4593

#1F4593 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.1% C 0.136 H 262.5°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#1F4593
RGB	rgb(31, 69, 147)
HSL	hsl(220, 65%, 35%)
HSV	hsv(220, 79%, 58%)
CMYK	cmyk(78.9%, 53.1%, 0%, 42.4%)
CIE-LAB	lab(31.00, 16.13, -46.84)
CIE-LCH	lch(31.00, 49.54, 289.01°)
OKLab	oklab(41.08% -0.0177 -0.1349)
OKLCH	oklch(41.08% 0.136 262.5)
XYZ	xyz(7.9578, 6.6532, 28.4629)
Luminance	0.0665 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4593 #936D1F

analogous

#1F7F93 #1F4593 #331F93

triadic

#1F4593 #931F45 #45931F

tetradic

#1F4593 #931F7F #936D1F #1F9333

square

#1F4593 #931F7F #936D1F #1F9333

split-complementary

#1F4593 #93331F #7F931F

monochromatic

#0A162E #142D60 #1F4593 #2A5DC6 #527FDA

Accessibility & contrast

On white

9.01

#1F4593 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#1F4593 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4593

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4593	#FFFFFF	#000000	##FFFFFF
##1F4593	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F4F96

Deuteranopia (green-blind)

#004491

Tritanopia (blue-blind)

#005865

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1f4593;
/* rgb */ color: rgb(31, 69, 147);
/* oklch */ color: oklch(41.1% 0.136 262.5);

Tailwind

colors: {
  custom: {
    50: '#6d78b3',
    500: '#1f4593',
    950: '#000000',
  },
}

SCSS

$custom: #1f4593;
$custom-light: #6d78b3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4593",
  "rgb": {
    "r": 31,
    "g": 69,
    "b": 147
  },
  "hsl": {
    "h": 220.345,
    "s": 65.169,
    "l": 34.902
  },
  "oklch": {
    "l": 0.41076,
    "c": 0.13604,
    "h": 262.5
  },
  "luminance": 0.06654
}

Semantic roles & 50–950 ramp

primary

#1F4593

secondary

#BE9A50

accent

#B140E8

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1F4593

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

Preview Lab → · Contrast checker → · Palette generator →