#1F3469#1F3469

#1F3469 is a dark, moderate blue. Relative luminance 0.038; OKLCH L 33.9% C 0.096 H 265.3°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#1F3469
RGB	rgb(31, 52, 105)
HSL	hsl(223, 54%, 27%)
HSV	hsv(223, 70%, 41%)
CMYK	cmyk(70.5%, 50.5%, 0%, 58.8%)
CIE-LAB	lab(22.89, 11.13, -33.56)
CIE-LCH	lch(22.89, 35.36, 288.35°)
OKLab	oklab(33.91% -0.0078 -0.0961)
OKLCH	oklch(33.91% 0.096 265.3)
XYZ	xyz(4.3420, 3.7668, 13.8601)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3469 #69541F

analogous

#1F5969 #1F3469 #2F1F69

triadic

#1F3469 #691F34 #34691F

tetradic

#1F3469 #691F59 #69541F #1F692F

square

#1F3469 #691F59 #69541F #1F692F

split-complementary

#1F3469 #692F1F #59691F

monochromatic

#070C18 #111D3A #1F3469 #2D4B98 #3D64C6

Accessibility & contrast

On white

11.98

#1F3469 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1F3469 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3469

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3469	#FFFFFF	#000000	##FFFFFF
##1F3469	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#183A6B

Deuteranopia (green-blind)

#083368

Tritanopia (blue-blind)

#004049

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f3469;
/* rgb */ color: rgb(31, 52, 105);
/* oklch */ color: oklch(33.9% 0.096 265.3);

Tailwind

colors: {
  custom: {
    50: '#646b94',
    500: '#1f3469',
    950: '#000000',
  },
}

SCSS

$custom: #1f3469;
$custom-light: #646b94;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3469",
  "rgb": {
    "r": 31,
    "g": 52,
    "b": 105
  },
  "hsl": {
    "h": 222.973,
    "s": 54.412,
    "l": 26.667
  },
  "oklch": {
    "l": 0.33911,
    "c": 0.09645,
    "h": 265.3
  },
  "luminance": 0.03767
}

Semantic roles & 50–950 ramp

primary

#1F3469

secondary

#9D8547

accent

#B44ADE

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1F3469

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

Preview Lab → · Contrast checker → · Palette generator →