#1F4097#1F4097

#1F4097 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.3% C 0.148 H 264.7°. Best body text is #FFFFFF at 9.38:1 contrast (WCAG AA passes).

Color values

HEX	#1F4097
RGB	rgb(31, 64, 151)
HSL	hsl(224, 66%, 36%)
HSV	hsv(224, 79%, 59%)
CMYK	cmyk(79.5%, 57.6%, 0%, 40.8%)
CIE-LAB	lab(29.89, 21.16, -51.09)
CIE-LCH	lch(29.89, 55.30, 292.50°)
OKLab	oklab(40.33% -0.0136 -0.1475)
OKLCH	oklch(40.33% 0.148 264.7)
XYZ	xyz(7.9824, 6.1915, 30.0465)
Luminance	0.0619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4097 #97761F

analogous

#1F7C97 #1F4097 #3A1F97

triadic

#1F4097 #971F40 #40971F

tetradic

#1F4097 #971F7C #97761F #1F973A

square

#1F4097 #971F7C #97761F #1F973A

split-complementary

#1F4097 #973A1F #7C971F

monochromatic

#0A1531 #152A64 #1F4097 #2956CA #547ADC

Accessibility & contrast

On white

9.38

#1F4097 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1F4097 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4097

9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4097	#FFFFFF	#000000	##FFFFFF
##1F4097	1.00	9.38	2.24	9.38
#FFFFFF	9.38	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9A

Deuteranopia (green-blind)

#004195

Tritanopia (blue-blind)

#005665

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1f4097;
/* rgb */ color: rgb(31, 64, 151);
/* oklch */ color: oklch(40.3% 0.148 264.7);

Tailwind

colors: {
  custom: {
    50: '#6f74b6',
    500: '#1f4097',
    950: '#000000',
  },
}

SCSS

$custom: #1f4097;
$custom-light: #6f74b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4097",
  "rgb": {
    "r": 31,
    "g": 64,
    "b": 151
  },
  "hsl": {
    "h": 223.5,
    "s": 65.934,
    "l": 35.686
  },
  "oklch": {
    "l": 0.40331,
    "c": 0.14808,
    "h": 264.7
  },
  "luminance": 0.06192
}

Semantic roles & 50–950 ramp

primary

#1F4097

secondary

#BFA152

accent

#BA3FE9

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1F4097

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

Preview Lab → · Contrast checker → · Palette generator →