#1F4498#1F4498

#1F4498 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.3% C 0.144 H 263.5°. Best body text is #FFFFFF at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#1F4498
RGB	rgb(31, 68, 152)
HSL	hsl(222, 66%, 36%)
HSV	hsv(222, 80%, 60%)
CMYK	cmyk(79.6%, 55.3%, 0%, 40.4%)
CIE-LAB	lab(31.09, 18.82, -49.74)
CIE-LCH	lch(31.09, 53.18, 290.72°)
OKLab	oklab(41.26% -0.0164 -0.1434)
OKLCH	oklch(41.26% 0.144 263.5)
XYZ	xyz(8.2977, 6.6916, 30.5540)
Luminance	0.0669 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4498 #98731F

analogous

#1F8098 #1F4498 #361F98

triadic

#1F4498 #981F44 #44981F

tetradic

#1F4498 #981F80 #98731F #1F9836

square

#1F4498 #981F80 #98731F #1F9836

split-complementary

#1F4498 #98361F #80981F

monochromatic

#0A1732 #152D65 #1F4498 #295BCB #557EDC

Accessibility & contrast

On white

8.98

#1F4498 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#1F4498 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4498

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4498	#FFFFFF	#000000	##FFFFFF
##1F4498	1.00	8.98	2.34	8.98
#FFFFFF	8.98	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004F9B

Deuteranopia (green-blind)

#004496

Tritanopia (blue-blind)

#005967

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1f4498;
/* rgb */ color: rgb(31, 68, 152);
/* oklch */ color: oklch(41.3% 0.144 263.5);

Tailwind

colors: {
  custom: {
    50: '#6f77b7',
    500: '#1f4498',
    950: '#000000',
  },
}

SCSS

$custom: #1f4498;
$custom-light: #6f77b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4498",
  "rgb": {
    "r": 31,
    "g": 68,
    "b": 152
  },
  "hsl": {
    "h": 221.653,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.41264,
    "c": 0.14437,
    "h": 263.5
  },
  "luminance": 0.06693
}

Semantic roles & 50–950 ramp

primary

#1F4498

secondary

#C09F53

accent

#B53FE9

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1F4498

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

Preview Lab → · Contrast checker → · Palette generator →