#1F4A96#1F4A96

#1F4A96 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.4% C 0.134 H 260.8°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#1F4A96
RGB	rgb(31, 74, 150)
HSL	hsl(218, 66%, 35%)
HSV	hsv(218, 79%, 59%)
CMYK	cmyk(79.3%, 50.7%, 0%, 41.2%)
CIE-LAB	lab(32.68, 13.92, -45.96)
CIE-LCH	lch(32.68, 48.02, 286.85°)
OKLab	oklab(42.42% -0.0214 -0.1322)
OKLCH	oklch(42.42% 0.134 260.8)
XYZ	xyz(8.5169, 7.3899, 29.8258)
Luminance	0.0739 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4A96 #966B1F

analogous

#1F8696 #1F4A96 #2F1F96

triadic

#1F4A96 #961F4A #4A961F

tetradic

#1F4A96 #961F86 #966B1F #1F962F

square

#1F4A96 #961F86 #966B1F #1F962F

split-complementary

#1F4A96 #962F1F #86961F

monochromatic

#0A1831 #153163 #1F4A96 #2963C9 #5485DC

Accessibility & contrast

On white

8.47

#1F4A96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#1F4A96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4A96

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4A96	#FFFFFF	#000000	##FFFFFF
##1F4A96	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C5399

Deuteranopia (green-blind)

#004894

Tritanopia (blue-blind)

#005C69

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f4a96;
/* rgb */ color: rgb(31, 74, 150);
/* oklch */ color: oklch(42.4% 0.134 260.8);

Tailwind

colors: {
  custom: {
    50: '#6e7bb5',
    500: '#1f4a96',
    950: '#000000',
  },
}

SCSS

$custom: #1f4a96;
$custom-light: #6e7bb5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4a96",
  "rgb": {
    "r": 31,
    "g": 74,
    "b": 150
  },
  "hsl": {
    "h": 218.319,
    "s": 65.746,
    "l": 35.49
  },
  "oklch": {
    "l": 0.42423,
    "c": 0.13391,
    "h": 260.8
  },
  "luminance": 0.07391
}

Semantic roles & 50–950 ramp

primary

#1F4A96

secondary

#BF9852

accent

#AB3FE9

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F4A96

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

Preview Lab → · Contrast checker → · Palette generator →