#1F449D#1F449D

#1F449D is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.7% C 0.151 H 263.9°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#1F449D
RGB	rgb(31, 68, 157)
HSL	hsl(222, 67%, 37%)
HSV	hsv(222, 80%, 62%)
CMYK	cmyk(80.3%, 56.7%, 0%, 38.4%)
CIE-LAB	lab(31.48, 20.80, -52.14)
CIE-LCH	lch(31.48, 56.14, 291.75°)
OKLab	oklab(41.68% -0.016 -0.1505)
OKLCH	oklch(41.68% 0.151 263.9)
XYZ	xyz(8.7158, 6.8589, 32.7563)
Luminance	0.0686 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F449D #9D781F

analogous

#1F839D #1F449D #391F9D

triadic

#1F449D #9D1F44 #449D1F

tetradic

#1F449D #9D1F83 #9D781F #1F9D39

square

#1F449D #9D1F83 #9D781F #1F9D39

split-complementary

#1F449D #9D391F #839D1F

monochromatic

#0B1837 #152E6A #1F449D #295AD0 #5880DE

Accessibility & contrast

On white

8.85

#1F449D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1F449D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F449D

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F449D	#FFFFFF	#000000	##FFFFFF
##1F449D	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A0

Deuteranopia (green-blind)

#00459B

Tritanopia (blue-blind)

#005A69

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f449d;
/* rgb */ color: rgb(31, 68, 157);
/* oklch */ color: oklch(41.7% 0.151 263.9);

Tailwind

colors: {
  custom: {
    50: '#7077bb',
    500: '#1f449d',
    950: '#000000',
  },
}

SCSS

$custom: #1f449d;
$custom-light: #7077bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f449d",
  "rgb": {
    "r": 31,
    "g": 68,
    "b": 157
  },
  "hsl": {
    "h": 222.381,
    "s": 67.021,
    "l": 36.863
  },
  "oklch": {
    "l": 0.4168,
    "c": 0.15135,
    "h": 263.9
  },
  "luminance": 0.0686
}

Semantic roles & 50–950 ramp

primary

#1F449D

secondary

#C2A256

accent

#B73EEA

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1F449D

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

Preview Lab → · Contrast checker → · Palette generator →