#1F4198#1F4198

#1F4198 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.6% C 0.148 H 264.5°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#1F4198
RGB	rgb(31, 65, 152)
HSL	hsl(223, 66%, 36%)
HSV	hsv(223, 80%, 60%)
CMYK	cmyk(79.6%, 57.2%, 0%, 40.4%)
CIE-LAB	lab(30.25, 20.87, -51.11)
CIE-LCH	lch(30.25, 55.21, 292.21°)
OKLab	oklab(40.63% -0.0142 -0.1475)
OKLCH	oklch(40.63% 0.148 264.5)
XYZ	xyz(8.1209, 6.3380, 30.4950)
Luminance	0.0634 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4198 #98761F

analogous

#1F7D98 #1F4198 #391F98

triadic

#1F4198 #981F41 #41981F

tetradic

#1F4198 #981F7D #98761F #1F9839

square

#1F4198 #981F7D #98761F #1F9839

split-complementary

#1F4198 #98391F #7D981F

monochromatic

#0A1632 #152B65 #1F4198 #2957CB #557BDC

Accessibility & contrast

On white

9.26

#1F4198 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#1F4198 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4198

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4198	#FFFFFF	#000000	##FFFFFF
##1F4198	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9B

Deuteranopia (green-blind)

#004296

Tritanopia (blue-blind)

#005766

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1f4198;
/* rgb */ color: rgb(31, 65, 152);
/* oklch */ color: oklch(40.6% 0.148 264.5);

Tailwind

colors: {
  custom: {
    50: '#6f75b7',
    500: '#1f4198',
    950: '#000000',
  },
}

SCSS

$custom: #1f4198;
$custom-light: #6f75b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4198",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 152
  },
  "hsl": {
    "h": 223.14,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.40626,
    "c": 0.14821,
    "h": 264.5
  },
  "luminance": 0.06339
}

Semantic roles & 50–950 ramp

primary

#1F4198

secondary

#C0A153

accent

#B93FE9

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1F4198

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

Preview Lab → · Contrast checker → · Palette generator →