#1F4698#1F4698

#1F4698 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.7% C 0.142 H 262.7°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#1F4698
RGB	rgb(31, 70, 152)
HSL	hsl(221, 66%, 36%)
HSV	hsv(221, 80%, 60%)
CMYK	cmyk(79.6%, 53.9%, 0%, 40.4%)
CIE-LAB	lab(31.66, 17.45, -48.82)
CIE-LCH	lch(31.66, 51.84, 289.67°)
OKLab	oklab(41.7% -0.018 -0.1407)
OKLCH	oklch(41.7% 0.142 262.7)
XYZ	xyz(8.4207, 6.9376, 30.5950)
Luminance	0.0694 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4698 #98711F

analogous

#1F8298 #1F4698 #341F98

triadic

#1F4698 #981F46 #46981F

tetradic

#1F4698 #981F82 #98711F #1F9834

square

#1F4698 #981F82 #98711F #1F9834

split-complementary

#1F4698 #98341F #82981F

monochromatic

#0A1732 #152F65 #1F4698 #295DCB #5581DC

Accessibility & contrast

On white

8.79

#1F4698 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1F4698 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4698

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4698	#FFFFFF	#000000	##FFFFFF
##1F4698	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07509B

Deuteranopia (green-blind)

#004596

Tritanopia (blue-blind)

#005A68

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f4698;
/* rgb */ color: rgb(31, 70, 152);
/* oklch */ color: oklch(41.7% 0.142 262.7);

Tailwind

colors: {
  custom: {
    50: '#6e78b7',
    500: '#1f4698',
    950: '#000000',
  },
}

SCSS

$custom: #1f4698;
$custom-light: #6e78b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4698",
  "rgb": {
    "r": 31,
    "g": 70,
    "b": 152
  },
  "hsl": {
    "h": 220.661,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.41696,
    "c": 0.14182,
    "h": 262.7
  },
  "luminance": 0.06939
}

Semantic roles & 50–950 ramp

primary

#1F4698

secondary

#C09D53

accent

#B23FE9

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F4698

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

Preview Lab → · Contrast checker → · Palette generator →