#1F3E97#1F3E97

#1F3E97 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.9% C 0.151 H 265.4°. Best body text is #FFFFFF at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#1F3E97
RGB	rgb(31, 62, 151)
HSL	hsl(225, 66%, 36%)
HSV	hsv(225, 79%, 59%)
CMYK	cmyk(79.5%, 58.9%, 0%, 40.8%)
CIE-LAB	lab(29.34, 22.53, -51.99)
CIE-LCH	lch(29.34, 56.66, 293.43°)
OKLab	oklab(39.92% -0.0122 -0.1501)
OKLCH	oklch(39.92% 0.151 265.4)
XYZ	xyz(7.8716, 5.9700, 30.0096)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3E97 #97781F

analogous

#1F7A97 #1F3E97 #3C1F97

triadic

#1F3E97 #971F3E #3E971F

tetradic

#1F3E97 #971F7A #97781F #1F973C

square

#1F3E97 #971F7A #97781F #1F973C

split-complementary

#1F3E97 #973C1F #7A971F

monochromatic

#0A1431 #152964 #1F3E97 #2953CA #5477DC

Accessibility & contrast

On white

9.57

#1F3E97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#1F3E97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3E97

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3E97	#FFFFFF	#000000	##FFFFFF
##1F3E97	1.00	9.57	2.19	9.57
#FFFFFF	9.57	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9A

Deuteranopia (green-blind)

#004095

Tritanopia (blue-blind)

#005464

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1f3e97;
/* rgb */ color: rgb(31, 62, 151);
/* oklch */ color: oklch(39.9% 0.151 265.4);

Tailwind

colors: {
  custom: {
    50: '#6f72b6',
    500: '#1f3e97',
    950: '#000000',
  },
}

SCSS

$custom: #1f3e97;
$custom-light: #6f72b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3e97",
  "rgb": {
    "r": 31,
    "g": 62,
    "b": 151
  },
  "hsl": {
    "h": 224.5,
    "s": 65.934,
    "l": 35.686
  },
  "oklch": {
    "l": 0.39915,
    "c": 0.15064,
    "h": 265.4
  },
  "luminance": 0.05971
}

Semantic roles & 50–950 ramp

primary

#1F3E97

secondary

#BFA352

accent

#BD3FE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1F3E97

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

Preview Lab → · Contrast checker → · Palette generator →