#1F4B92#1F4B92

#1F4B92 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.3% C 0.127 H 259.6°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#1F4B92
RGB	rgb(31, 75, 146)
HSL	hsl(217, 65%, 35%)
HSV	hsv(217, 79%, 57%)
CMYK	cmyk(78.8%, 48.6%, 0%, 42.7%)
CIE-LAB	lab(32.70, 11.64, -43.50)
CIE-LCH	lch(32.70, 45.03, 284.99°)
OKLab	oklab(42.35% -0.0228 -0.1249)
OKLCH	oklch(42.35% 0.127 259.6)
XYZ	xyz(8.2676, 7.3978, 28.1807)
Luminance	0.0740 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4B92 #92661F

analogous

#1F8592 #1F4B92 #2C1F92

triadic

#1F4B92 #921F4B #4B921F

tetradic

#1F4B92 #921F85 #92661F #1F922C

square

#1F4B92 #921F85 #92661F #1F922C

split-complementary

#1F4B92 #922C1F #85921F

monochromatic

#0A172D #143160 #1F4B92 #2A65C4 #5186DA

Accessibility & contrast

On white

8.47

#1F4B92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#1F4B92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4B92

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4B92	#FFFFFF	#000000	##FFFFFF
##1F4B92	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#245295

Deuteranopia (green-blind)

#004891

Tritanopia (blue-blind)

#005C67

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f4b92;
/* rgb */ color: rgb(31, 75, 146);
/* oklch */ color: oklch(42.3% 0.127 259.6);

Tailwind

colors: {
  custom: {
    50: '#6d7cb2',
    500: '#1f4b92',
    950: '#000000',
  },
}

SCSS

$custom: #1f4b92;
$custom-light: #6d7cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4b92",
  "rgb": {
    "r": 31,
    "g": 75,
    "b": 146
  },
  "hsl": {
    "h": 217.043,
    "s": 64.972,
    "l": 34.706
  },
  "oklch": {
    "l": 0.42347,
    "c": 0.127,
    "h": 259.6
  },
  "luminance": 0.07399
}

Semantic roles & 50–950 ramp

primary

#1F4B92

secondary

#BD9350

accent

#A840E8

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F4B92

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

Preview Lab → · Contrast checker → · Palette generator →