#1F3D98#1F3D98

#1F3D98 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.8% C 0.153 H 265.7°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#1F3D98
RGB	rgb(31, 61, 152)
HSL	hsl(225, 66%, 36%)
HSV	hsv(225, 80%, 60%)
CMYK	cmyk(79.6%, 59.9%, 0%, 40.4%)
CIE-LAB	lab(29.15, 23.61, -52.91)
CIE-LCH	lch(29.15, 57.94, 294.04°)
OKLab	oklab(39.8% -0.0114 -0.1529)
OKLCH	oklch(39.8% 0.153 265.7)
XYZ	xyz(7.8993, 5.8949, 30.4212)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3D98 #987A1F

analogous

#1F7998 #1F3D98 #3D1F98

triadic

#1F3D98 #981F3D #3D981F

tetradic

#1F3D98 #981F79 #987A1F #1F983D

square

#1F3D98 #981F79 #987A1F #1F983D

split-complementary

#1F3D98 #983D1F #79981F

monochromatic

#0A1432 #152965 #1F3D98 #2951CB #5577DC

Accessibility & contrast

On white

9.64

#1F3D98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1F3D98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3D98

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3D98	#FFFFFF	#000000	##FFFFFF
##1F3D98	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9B

Deuteranopia (green-blind)

#003F96

Tritanopia (blue-blind)

#005464

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1f3d98;
/* rgb */ color: rgb(31, 61, 152);
/* oklch */ color: oklch(39.8% 0.153 265.7);

Tailwind

colors: {
  custom: {
    50: '#6f72b7',
    500: '#1f3d98',
    950: '#000000',
  },
}

SCSS

$custom: #1f3d98;
$custom-light: #6f72b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3d98",
  "rgb": {
    "r": 31,
    "g": 61,
    "b": 152
  },
  "hsl": {
    "h": 225.124,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.39797,
    "c": 0.1533,
    "h": 265.7
  },
  "luminance": 0.05896
}

Semantic roles & 50–950 ramp

primary

#1F3D98

secondary

#C0A553

accent

#BF3FE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #1F3D98

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

Preview Lab → · Contrast checker → · Palette generator →