#1F4A94#1F4A94

#1F4A94 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.3% C 0.131 H 260.5°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#1F4A94
RGB	rgb(31, 74, 148)
HSL	hsl(218, 65%, 35%)
HSV	hsv(218, 79%, 58%)
CMYK	cmyk(79.1%, 50%, 0%, 42%)
CIE-LAB	lab(32.54, 13.12, -44.97)
CIE-LCH	lch(32.54, 46.85, 286.27°)
OKLab	oklab(42.27% -0.0217 -0.1293)
OKLCH	oklch(42.27% 0.131 260.5)
XYZ	xyz(8.3572, 7.3260, 28.9848)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4A94 #94691F

analogous

#1F8494 #1F4A94 #2F1F94

triadic

#1F4A94 #941F4A #4A941F

tetradic

#1F4A94 #941F84 #94691F #1F942F

square

#1F4A94 #941F84 #94691F #1F942F

split-complementary

#1F4A94 #942F1F #84941F

monochromatic

#0A172F #143161 #1F4A94 #2A63C7 #5385DB

Accessibility & contrast

On white

8.52

#1F4A94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1F4A94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4A94

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4A94	#FFFFFF	#000000	##FFFFFF
##1F4A94	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F5297

Deuteranopia (green-blind)

#004893

Tritanopia (blue-blind)

#005C68

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f4a94;
/* rgb */ color: rgb(31, 74, 148);
/* oklch */ color: oklch(42.3% 0.131 260.5);

Tailwind

colors: {
  custom: {
    50: '#6d7bb4',
    500: '#1f4a94',
    950: '#000000',
  },
}

SCSS

$custom: #1f4a94;
$custom-light: #6d7bb4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4a94",
  "rgb": {
    "r": 31,
    "g": 74,
    "b": 148
  },
  "hsl": {
    "h": 217.949,
    "s": 65.363,
    "l": 35.098
  },
  "oklch": {
    "l": 0.4227,
    "c": 0.13108,
    "h": 260.5
  },
  "luminance": 0.07327
}

Semantic roles & 50–950 ramp

primary

#1F4A94

secondary

#BE9651

accent

#AA3FE8

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F4A94

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

Preview Lab → · Contrast checker → · Palette generator →