#1F499C#1F499C

#1F499C is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.7% C 0.144 H 262.1°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#1F499C
RGB	rgb(31, 73, 156)
HSL	hsl(220, 67%, 37%)
HSV	hsv(220, 80%, 61%)
CMYK	cmyk(80.1%, 53.2%, 0%, 38.8%)
CIE-LAB	lab(32.82, 17.00, -49.37)
CIE-LCH	lch(32.82, 52.21, 289.00°)
OKLab	oklab(42.67% -0.0198 -0.1422)
OKLCH	oklch(42.67% 0.144 262.1)
XYZ	xyz(8.9462, 7.4556, 32.4136)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F499C #9C721F

analogous

#1F889C #1F499C #341F9C

triadic

#1F499C #9C1F49 #499C1F

tetradic

#1F499C #9C1F88 #9C721F #1F9C34

square

#1F499C #9C1F88 #9C721F #1F9C34

split-complementary

#1F499C #9C341F #889C1F

monochromatic

#0B1936 #153169 #1F499C #2961CF #5885DE

Accessibility & contrast

On white

8.43

#1F499C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#1F499C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F499C

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F499C	#FFFFFF	#000000	##FFFFFF
##1F499C	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D539F

Deuteranopia (green-blind)

#00489A

Tritanopia (blue-blind)

#005D6B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f499c;
/* rgb */ color: rgb(31, 73, 156);
/* oklch */ color: oklch(42.7% 0.144 262.1);

Tailwind

colors: {
  custom: {
    50: '#6f7bba',
    500: '#1f499c',
    950: '#000000',
  },
}

SCSS

$custom: #1f499c;
$custom-light: #6f7bba;
$custom-dark: #000000;

JSON

{
  "hex": "#1f499c",
  "rgb": {
    "r": 31,
    "g": 73,
    "b": 156
  },
  "hsl": {
    "h": 219.84,
    "s": 66.845,
    "l": 36.667
  },
  "oklch": {
    "l": 0.42671,
    "c": 0.1436,
    "h": 262.1
  },
  "luminance": 0.07457
}

Semantic roles & 50–950 ramp

primary

#1F499C

secondary

#C19D55

accent

#B03EEA

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1F499C

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

Preview Lab → · Contrast checker → · Palette generator →