#1F3E98#1F3E98

#1F3E98 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.0% C 0.152 H 265.4°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#1F3E98
RGB	rgb(31, 62, 152)
HSL	hsl(225, 66%, 36%)
HSV	hsv(225, 80%, 60%)
CMYK	cmyk(79.6%, 59.2%, 0%, 40.4%)
CIE-LAB	lab(29.42, 22.92, -52.47)
CIE-LCH	lch(29.42, 57.25, 293.60°)
OKLab	oklab(40% -0.0121 -0.1515)
OKLCH	oklch(40% 0.152 265.4)
XYZ	xyz(7.9532, 6.0026, 30.4391)
Luminance	0.0600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3E98 #98791F

analogous

#1F7A98 #1F3E98 #3C1F98

triadic

#1F3E98 #981F3E #3E981F

tetradic

#1F3E98 #981F7A #98791F #1F983C

square

#1F3E98 #981F7A #98791F #1F983C

split-complementary

#1F3E98 #983C1F #7A981F

monochromatic

#0A1532 #152965 #1F3E98 #2953CB #5578DC

Accessibility & contrast

On white

9.54

#1F3E98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#1F3E98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3E98

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3E98	#FFFFFF	#000000	##FFFFFF
##1F3E98	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9B

Deuteranopia (green-blind)

#004096

Tritanopia (blue-blind)

#005565

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1f3e98;
/* rgb */ color: rgb(31, 62, 152);
/* oklch */ color: oklch(40.0% 0.152 265.4);

Tailwind

colors: {
  custom: {
    50: '#6f72b7',
    500: '#1f3e98',
    950: '#000000',
  },
}

SCSS

$custom: #1f3e98;
$custom-light: #6f72b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3e98",
  "rgb": {
    "r": 31,
    "g": 62,
    "b": 152
  },
  "hsl": {
    "h": 224.628,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.40002,
    "c": 0.15202,
    "h": 265.4
  },
  "luminance": 0.06004
}

Semantic roles & 50–950 ramp

primary

#1F3E98

secondary

#C0A453

accent

#BD3FE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #1F3E98

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

Preview Lab → · Contrast checker → · Palette generator →