#1F4D97#1F4D97

#1F4D97 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.2% C 0.132 H 259.6°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#1F4D97
RGB	rgb(31, 77, 151)
HSL	hsl(217, 66%, 36%)
HSV	hsv(217, 79%, 59%)
CMYK	cmyk(79.5%, 49%, 0%, 40.8%)
CIE-LAB	lab(33.63, 12.29, -45.03)
CIE-LCH	lch(33.63, 46.68, 285.27°)
OKLab	oklab(43.18% -0.0237 -0.1294)
OKLCH	oklch(43.18% 0.132 259.6)
XYZ	xyz(8.8028, 7.8324, 30.3200)
Luminance	0.0783 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4D97 #97691F

analogous

#1F8997 #1F4D97 #2D1F97

triadic

#1F4D97 #971F4D #4D971F

tetradic

#1F4D97 #971F89 #97691F #1F972D

square

#1F4D97 #971F89 #97691F #1F972D

split-complementary

#1F4D97 #972D1F #89971F

monochromatic

#0A1931 #153364 #1F4D97 #2967CA #5488DC

Accessibility & contrast

On white

8.18

#1F4D97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#1F4D97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4D97

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4D97	#FFFFFF	#000000	##FFFFFF
##1F4D97	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23559A

Deuteranopia (green-blind)

#004A96

Tritanopia (blue-blind)

#005F6A

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1f4d97;
/* rgb */ color: rgb(31, 77, 151);
/* oklch */ color: oklch(43.2% 0.132 259.6);

Tailwind

colors: {
  custom: {
    50: '#6e7eb6',
    500: '#1f4d97',
    950: '#000000',
  },
}

SCSS

$custom: #1f4d97;
$custom-light: #6e7eb6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4d97",
  "rgb": {
    "r": 31,
    "g": 77,
    "b": 151
  },
  "hsl": {
    "h": 217,
    "s": 65.934,
    "l": 35.686
  },
  "oklch": {
    "l": 0.43176,
    "c": 0.13155,
    "h": 259.6
  },
  "luminance": 0.07833
}

Semantic roles & 50–950 ramp

primary

#1F4D97

secondary

#BF9652

accent

#A83FE9

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F4D97

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

Preview Lab → · Contrast checker → · Palette generator →