#1F4495#1F4495

#1F4495 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.0% C 0.140 H 263.1°. Best body text is #FFFFFF at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#1F4495
RGB	rgb(31, 68, 149)
HSL	hsl(221, 66%, 35%)
HSV	hsv(221, 79%, 58%)
CMYK	cmyk(79.2%, 54.4%, 0%, 41.6%)
CIE-LAB	lab(30.87, 17.62, -48.28)
CIE-LCH	lch(30.87, 51.40, 290.05°)
OKLab	oklab(41.02% -0.0167 -0.1391)
OKLCH	oklch(41.02% 0.14 263.1)
XYZ	xyz(8.0551, 6.5945, 29.2763)
Luminance	0.0659 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4495 #95701F

analogous

#1F7F95 #1F4495 #351F95

triadic

#1F4495 #951F44 #44951F

tetradic

#1F4495 #951F7F #95701F #1F9535

square

#1F4495 #951F7F #95701F #1F9535

split-complementary

#1F4495 #95351F #7F951F

monochromatic

#0A1630 #142D62 #1F4495 #2A5BC8 #537EDB

Accessibility & contrast

On white

9.06

#1F4495 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#1F4495 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4495

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4495	#FFFFFF	#000000	##FFFFFF
##1F4495	1.00	9.06	2.32	9.06
#FFFFFF	9.06	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#044E98

Deuteranopia (green-blind)

#004393

Tritanopia (blue-blind)

#005865

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1f4495;
/* rgb */ color: rgb(31, 68, 149);
/* oklch */ color: oklch(41.0% 0.140 263.1);

Tailwind

colors: {
  custom: {
    50: '#6e77b5',
    500: '#1f4495',
    950: '#000000',
  },
}

SCSS

$custom: #1f4495;
$custom-light: #6e77b5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4495",
  "rgb": {
    "r": 31,
    "g": 68,
    "b": 149
  },
  "hsl": {
    "h": 221.186,
    "s": 65.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.41018,
    "c": 0.14015,
    "h": 263.1
  },
  "luminance": 0.06595
}

Semantic roles & 50–950 ramp

primary

#1F4495

secondary

#BF9C51

accent

#B33FE9

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1F4495

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

Preview Lab → · Contrast checker → · Palette generator →