#1F449E#1F449E

#1F449E is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.8% C 0.153 H 264.0°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#1F449E
RGB	rgb(31, 68, 158)
HSL	hsl(223, 67%, 37%)
HSV	hsv(223, 80%, 62%)
CMYK	cmyk(80.4%, 57%, 0%, 38%)
CIE-LAB	lab(31.56, 21.20, -52.62)
CIE-LCH	lch(31.56, 56.73, 291.94°)
OKLab	oklab(41.77% -0.016 -0.1519)
OKLCH	oklch(41.77% 0.153 264)
XYZ	xyz(8.8016, 6.8931, 33.2078)
Luminance	0.0689 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F449E #9E791F

analogous

#1F849E #1F449E #3A1F9E

triadic

#1F449E #9E1F44 #449E1F

tetradic

#1F449E #9E1F84 #9E791F #1F9E3A

square

#1F449E #9E1F84 #9E791F #1F9E3A

split-complementary

#1F449E #9E3A1F #849E1F

monochromatic

#0B1838 #152E6B #1F449E #295AD1 #5980DE

Accessibility & contrast

On white

8.83

#1F449E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#1F449E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F449E

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F449E	#FFFFFF	#000000	##FFFFFF
##1F449E	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A1

Deuteranopia (green-blind)

#00459C

Tritanopia (blue-blind)

#005A6A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f449e;
/* rgb */ color: rgb(31, 68, 158);
/* oklch */ color: oklch(41.8% 0.153 264.0);

Tailwind

colors: {
  custom: {
    50: '#7077bb',
    500: '#1f449e',
    950: '#000000',
  },
}

SCSS

$custom: #1f449e;
$custom-light: #7077bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f449e",
  "rgb": {
    "r": 31,
    "g": 68,
    "b": 158
  },
  "hsl": {
    "h": 222.52,
    "s": 67.196,
    "l": 37.059
  },
  "oklch": {
    "l": 0.41765,
    "c": 0.15274,
    "h": 264
  },
  "luminance": 0.06894
}

Semantic roles & 50–950 ramp

primary

#1F449E

secondary

#C2A356

accent

#B83EEA

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1F449E

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

Preview Lab → · Contrast checker → · Palette generator →