#1F4AAE#1F4AAE

#1F4AAE is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.4% C 0.167 H 263.5°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#1F4AAE
RGB	rgb(31, 74, 174)
HSL	hsl(222, 70%, 40%)
HSV	hsv(222, 82%, 68%)
CMYK	cmyk(82.2%, 57.5%, 0%, 31.8%)
CIE-LAB	lab(34.49, 23.45, -57.46)
CIE-LCH	lch(34.49, 62.06, 292.20°)
OKLab	oklab(44.37% -0.019 -0.166)
OKLCH	oklch(44.37% 0.167 263.5)
XYZ	xyz(10.6511, 8.2436, 41.0660)
Luminance	0.0824 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4AAE #AE831F

analogous

#1F91AE #1F4AAE #3B1FAE

triadic

#1F4AAE #AE1F4A #4AAE1F

tetradic

#1F4AAE #AE1F91 #AE831F #1FAE3B

square

#1F4AAE #AE1F91 #AE831F #1FAE3B

split-complementary

#1F4AAE #AE3B1F #91AE1F

monochromatic

#0C1E46 #16347A #1F4AAE #3063DA #648AE3

Accessibility & contrast

On white

7.93

#1F4AAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#1F4AAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4AAE

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4AAE	#FFFFFF	#000000	##FFFFFF
##1F4AAE	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B1

Deuteranopia (green-blind)

#004BAC

Tritanopia (blue-blind)

#006374

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1f4aae;
/* rgb */ color: rgb(31, 74, 174);
/* oklch */ color: oklch(44.4% 0.167 263.5);

Tailwind

colors: {
  custom: {
    50: '#747bc7',
    500: '#1f4aae',
    950: '#000000',
  },
}

SCSS

$custom: #1f4aae;
$custom-light: #747bc7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4aae",
  "rgb": {
    "r": 31,
    "g": 74,
    "b": 174
  },
  "hsl": {
    "h": 221.958,
    "s": 69.756,
    "l": 40.196
  },
  "oklch": {
    "l": 0.44365,
    "c": 0.16708,
    "h": 263.5
  },
  "luminance": 0.08245
}

Semantic roles & 50–950 ramp

primary

#1F4AAE

secondary

#C8A960

accent

#B73BED

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1F4AAE

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

Preview Lab → · Contrast checker → · Palette generator →