#1F3C98#1F3C98

#1F3C98 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.6% C 0.155 H 266.0°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#1F3C98
RGB	rgb(31, 60, 152)
HSL	hsl(226, 66%, 36%)
HSV	hsv(226, 80%, 60%)
CMYK	cmyk(79.6%, 60.5%, 0%, 40.4%)
CIE-LAB	lab(28.87, 24.29, -53.35)
CIE-LCH	lch(28.87, 58.62, 294.48°)
OKLab	oklab(39.59% -0.0108 -0.1542)
OKLCH	oklch(39.59% 0.155 266)
XYZ	xyz(7.8464, 5.7891, 30.4036)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3C98 #987B1F

analogous

#1F7898 #1F3C98 #3E1F98

triadic

#1F3C98 #981F3C #3C981F

tetradic

#1F3C98 #981F78 #987B1F #1F983E

square

#1F3C98 #981F78 #987B1F #1F983E

split-complementary

#1F3C98 #983E1F #78981F

monochromatic

#0A1432 #152865 #1F3C98 #2950CB #5575DC

Accessibility & contrast

On white

9.73

#1F3C98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1F3C98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3C98

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3C98	#FFFFFF	#000000	##FFFFFF
##1F3C98	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9B

Deuteranopia (green-blind)

#003F96

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1f3c98;
/* rgb */ color: rgb(31, 60, 152);
/* oklch */ color: oklch(39.6% 0.155 266.0);

Tailwind

colors: {
  custom: {
    50: '#6f71b7',
    500: '#1f3c98',
    950: '#000000',
  },
}

SCSS

$custom: #1f3c98;
$custom-light: #6f71b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3c98",
  "rgb": {
    "r": 31,
    "g": 60,
    "b": 152
  },
  "hsl": {
    "h": 225.62,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.39594,
    "c": 0.15456,
    "h": 266
  },
  "luminance": 0.0579
}

Semantic roles & 50–950 ramp

primary

#1F3C98

secondary

#C0A653

accent

#C03FE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #1F3C98

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

Preview Lab → · Contrast checker → · Palette generator →