#1F499D#1F499D

#1F499D is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.8% C 0.145 H 262.2°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#1F499D
RGB	rgb(31, 73, 157)
HSL	hsl(220, 67%, 37%)
HSV	hsv(220, 80%, 62%)
CMYK	cmyk(80.3%, 53.5%, 0%, 38.4%)
CIE-LAB	lab(32.90, 17.40, -49.85)
CIE-LCH	lch(32.90, 52.80, 289.24°)
OKLab	oklab(42.75% -0.0197 -0.1437)
OKLCH	oklch(42.75% 0.145 262.2)
XYZ	xyz(9.0312, 7.4897, 32.8614)
Luminance	0.0749 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F499D #9D731F

analogous

#1F889D #1F499D #341F9D

triadic

#1F499D #9D1F49 #499D1F

tetradic

#1F499D #9D1F88 #9D731F #1F9D34

square

#1F499D #9D1F88 #9D731F #1F9D34

split-complementary

#1F499D #9D341F #889D1F

monochromatic

#0B1937 #15316A #1F499D #2961D0 #5885DE

Accessibility & contrast

On white

8.41

#1F499D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1F499D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F499D

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F499D	#FFFFFF	#000000	##FFFFFF
##1F499D	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A53A0

Deuteranopia (green-blind)

#00489B

Tritanopia (blue-blind)

#005E6C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f499d;
/* rgb */ color: rgb(31, 73, 157);
/* oklch */ color: oklch(42.8% 0.145 262.2);

Tailwind

colors: {
  custom: {
    50: '#707bbb',
    500: '#1f499d',
    950: '#000000',
  },
}

SCSS

$custom: #1f499d;
$custom-light: #707bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f499d",
  "rgb": {
    "r": 31,
    "g": 73,
    "b": 157
  },
  "hsl": {
    "h": 220,
    "s": 67.021,
    "l": 36.863
  },
  "oklch": {
    "l": 0.42751,
    "c": 0.145,
    "h": 262.2
  },
  "luminance": 0.07491
}

Semantic roles & 50–950 ramp

primary

#1F499D

secondary

#C29E56

accent

#B13EEA

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1F499D

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

Preview Lab → · Contrast checker → · Palette generator →