#1F4592#1F4592

#1F4592 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.0% C 0.135 H 262.4°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#1F4592
RGB	rgb(31, 69, 146)
HSL	hsl(220, 65%, 35%)
HSV	hsv(220, 79%, 57%)
CMYK	cmyk(78.8%, 52.7%, 0%, 42.7%)
CIE-LAB	lab(30.93, 15.73, -46.35)
CIE-LCH	lch(30.93, 48.94, 288.75°)
OKLab	oklab(41% -0.0178 -0.1334)
OKLCH	oklch(41% 0.135 262.4)
XYZ	xyz(7.8796, 6.6220, 28.0514)
Luminance	0.0662 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4592 #926C1F

analogous

#1F7F92 #1F4592 #331F92

triadic

#1F4592 #921F45 #45921F

tetradic

#1F4592 #921F7F #926C1F #1F9233

square

#1F4592 #921F7F #926C1F #1F9233

split-complementary

#1F4592 #92331F #7F921F

monochromatic

#0A152D #142D60 #1F4592 #2A5DC4 #517EDA

Accessibility & contrast

On white

9.03

#1F4592 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#1F4592 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4592

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4592	#FFFFFF	#000000	##FFFFFF
##1F4592	1.00	9.03	2.32	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#124E95

Deuteranopia (green-blind)

#004490

Tritanopia (blue-blind)

#005864

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1f4592;
/* rgb */ color: rgb(31, 69, 146);
/* oklch */ color: oklch(41.0% 0.135 262.4);

Tailwind

colors: {
  custom: {
    50: '#6d78b3',
    500: '#1f4592',
    950: '#000000',
  },
}

SCSS

$custom: #1f4592;
$custom-light: #6d78b3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4592",
  "rgb": {
    "r": 31,
    "g": 69,
    "b": 146
  },
  "hsl": {
    "h": 220.174,
    "s": 64.972,
    "l": 34.706
  },
  "oklch": {
    "l": 0.40996,
    "c": 0.13462,
    "h": 262.4
  },
  "luminance": 0.06623
}

Semantic roles & 50–950 ramp

primary

#1F4592

secondary

#BD9950

accent

#B040E8

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1F4592

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

Preview Lab → · Contrast checker → · Palette generator →