#1F419D#1F419D

#1F419D is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.1% C 0.155 H 264.8°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#1F419D
RGB	rgb(31, 65, 157)
HSL	hsl(224, 67%, 37%)
HSV	hsv(224, 80%, 62%)
CMYK	cmyk(80.3%, 58.6%, 0%, 38.4%)
CIE-LAB	lab(30.65, 22.85, -53.49)
CIE-LCH	lch(30.65, 58.17, 293.13°)
OKLab	oklab(41.06% -0.014 -0.1545)
OKLCH	oklch(41.06% 0.155 264.8)
XYZ	xyz(8.5390, 6.5052, 32.6973)
Luminance	0.0651 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F419D #9D7B1F

analogous

#1F809D #1F419D #3C1F9D

triadic

#1F419D #9D1F41 #419D1F

tetradic

#1F419D #9D1F80 #9D7B1F #1F9D3C

square

#1F419D #9D1F80 #9D7B1F #1F9D3C

split-complementary

#1F419D #9D3C1F #809D1F

monochromatic

#0B1737 #152C6A #1F419D #2956D0 #587CDE

Accessibility & contrast

On white

9.13

#1F419D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#1F419D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F419D

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F419D	#FFFFFF	#000000	##FFFFFF
##1F419D	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA0

Deuteranopia (green-blind)

#00439B

Tritanopia (blue-blind)

#005868

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f419d;
/* rgb */ color: rgb(31, 65, 157);
/* oklch */ color: oklch(41.1% 0.155 264.8);

Tailwind

colors: {
  custom: {
    50: '#7075bb',
    500: '#1f419d',
    950: '#000000',
  },
}

SCSS

$custom: #1f419d;
$custom-light: #7075bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f419d",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 157
  },
  "hsl": {
    "h": 223.81,
    "s": 67.021,
    "l": 36.863
  },
  "oklch": {
    "l": 0.41056,
    "c": 0.15515,
    "h": 264.8
  },
  "luminance": 0.06506
}

Semantic roles & 50–950 ramp

primary

#1F419D

secondary

#C2A556

accent

#BB3EEA

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1F419D

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

Preview Lab → · Contrast checker → · Palette generator →