#1F4E92#1F4E92

#1F4E92 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.0% C 0.123 H 258.1°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E92
RGB	rgb(31, 78, 146)
HSL	hsl(215, 65%, 35%)
HSV	hsv(215, 79%, 57%)
CMYK	cmyk(78.8%, 46.6%, 0%, 42.7%)
CIE-LAB	lab(33.59, 9.62, -42.05)
CIE-LCH	lch(33.59, 43.14, 282.88°)
OKLab	oklab(43.04% -0.0254 -0.1206)
OKLCH	oklch(43.04% 0.123 258.1)
XYZ	xyz(8.4759, 7.8144, 28.2502)
Luminance	0.0781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E92 #92631F

analogous

#1F8892 #1F4E92 #291F92

triadic

#1F4E92 #921F4E #4E921F

tetradic

#1F4E92 #921F88 #92631F #1F9229

square

#1F4E92 #921F88 #92631F #1F9229

split-complementary

#1F4E92 #92291F #88921F

monochromatic

#0A182D #143360 #1F4E92 #2A69C4 #5189DA

Accessibility & contrast

On white

8.19

#1F4E92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#1F4E92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E92

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E92	#FFFFFF	#000000	##FFFFFF
##1F4E92	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A5595

Deuteranopia (green-blind)

#104A91

Tritanopia (blue-blind)

#005E69

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1f4e92;
/* rgb */ color: rgb(31, 78, 146);
/* oklch */ color: oklch(43.0% 0.123 258.1);

Tailwind

colors: {
  custom: {
    50: '#6d7fb2',
    500: '#1f4e92',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e92;
$custom-light: #6d7fb2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e92",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 146
  },
  "hsl": {
    "h": 215.478,
    "s": 64.972,
    "l": 34.706
  },
  "oklch": {
    "l": 0.43039,
    "c": 0.12327,
    "h": 258.1
  },
  "luminance": 0.07815
}

Semantic roles & 50–950 ramp

primary

#1F4E92

secondary

#BD9050

accent

#A340E8

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1F4E92

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

Preview Lab → · Contrast checker → · Palette generator →