#1F4A92#1F4A92

#1F4A92 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.1% C 0.128 H 260.1°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#1F4A92
RGB	rgb(31, 74, 146)
HSL	hsl(218, 65%, 35%)
HSV	hsv(218, 79%, 57%)
CMYK	cmyk(78.8%, 49.3%, 0%, 42.7%)
CIE-LAB	lab(32.40, 12.32, -43.98)
CIE-LCH	lch(32.40, 45.67, 285.65°)
OKLab	oklab(42.12% -0.022 -0.1263)
OKLCH	oklch(42.12% 0.128 260.1)
XYZ	xyz(8.2003, 7.2632, 28.1583)
Luminance	0.0726 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4A92 #92671F

analogous

#1F8492 #1F4A92 #2D1F92

triadic

#1F4A92 #921F4A #4A921F

tetradic

#1F4A92 #921F84 #92671F #1F922D

square

#1F4A92 #921F84 #92671F #1F922D

split-complementary

#1F4A92 #922D1F #84921F

monochromatic

#0A172D #143060 #1F4A92 #2A64C4 #5184DA

Accessibility & contrast

On white

8.56

#1F4A92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1F4A92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4A92

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4A92	#FFFFFF	#000000	##FFFFFF
##1F4A92	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#215295

Deuteranopia (green-blind)

#004791

Tritanopia (blue-blind)

#005B67

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1f4a92;
/* rgb */ color: rgb(31, 74, 146);
/* oklch */ color: oklch(42.1% 0.128 260.1);

Tailwind

colors: {
  custom: {
    50: '#6d7bb2',
    500: '#1f4a92',
    950: '#000000',
  },
}

SCSS

$custom: #1f4a92;
$custom-light: #6d7bb2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4a92",
  "rgb": {
    "r": 31,
    "g": 74,
    "b": 146
  },
  "hsl": {
    "h": 217.565,
    "s": 64.972,
    "l": 34.706
  },
  "oklch": {
    "l": 0.42119,
    "c": 0.12825,
    "h": 260.1
  },
  "luminance": 0.07264
}

Semantic roles & 50–950 ramp

primary

#1F4A92

secondary

#BD9450

accent

#A940E8

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F4A92

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

Preview Lab → · Contrast checker → · Palette generator →