#1F4697#1F4697

#1F4697 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.6% C 0.140 H 262.6°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#1F4697
RGB	rgb(31, 70, 151)
HSL	hsl(221, 66%, 36%)
HSV	hsv(221, 79%, 59%)
CMYK	cmyk(79.5%, 53.6%, 0%, 40.8%)
CIE-LAB	lab(31.59, 17.05, -48.33)
CIE-LCH	lch(31.59, 51.25, 289.43°)
OKLab	oklab(41.62% -0.0181 -0.1392)
OKLCH	oklch(41.62% 0.14 262.6)
XYZ	xyz(8.3391, 6.9050, 30.1655)
Luminance	0.0691 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4697 #97701F

analogous

#1F8297 #1F4697 #341F97

triadic

#1F4697 #971F46 #46971F

tetradic

#1F4697 #971F82 #97701F #1F9734

square

#1F4697 #971F82 #97701F #1F9734

split-complementary

#1F4697 #97341F #82971F

monochromatic

#0A1731 #152E64 #1F4697 #295ECA #5480DC

Accessibility & contrast

On white

8.82

#1F4697 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#1F4697 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4697

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4697	#FFFFFF	#000000	##FFFFFF
##1F4697	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A509A

Deuteranopia (green-blind)

#004595

Tritanopia (blue-blind)

#005A67

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f4697;
/* rgb */ color: rgb(31, 70, 151);
/* oklch */ color: oklch(41.6% 0.140 262.6);

Tailwind

colors: {
  custom: {
    50: '#6e78b6',
    500: '#1f4697',
    950: '#000000',
  },
}

SCSS

$custom: #1f4697;
$custom-light: #6e78b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4697",
  "rgb": {
    "r": 31,
    "g": 70,
    "b": 151
  },
  "hsl": {
    "h": 220.5,
    "s": 65.934,
    "l": 35.686
  },
  "oklch": {
    "l": 0.41616,
    "c": 0.14041,
    "h": 262.6
  },
  "luminance": 0.06906
}

Semantic roles & 50–950 ramp

primary

#1F4697

secondary

#BF9C52

accent

#B23FE9

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F4697

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

Preview Lab → · Contrast checker → · Palette generator →