#1F447E#1F447E

#1F447E is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.3% C 0.107 H 259.1°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#1F447E
RGB	rgb(31, 68, 126)
HSL	hsl(217, 61%, 31%)
HSV	hsv(217, 75%, 49%)
CMYK	cmyk(75.4%, 46%, 0%, 50.6%)
CIE-LAB	lab(29.24, 8.39, -36.71)
CIE-LCH	lch(29.24, 37.66, 282.87°)
OKLab	oklab(39.25% -0.0201 -0.1051)
OKLCH	oklch(39.25% 0.107 259.1)
XYZ	xyz(6.3967, 5.9312, 20.5423)
Luminance	0.0593 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F447E #7E591F

analogous

#1F737E #1F447E #291F7E

triadic

#1F447E #7E1F44 #447E1F

tetradic

#1F447E #7E1F73 #7E591F #1F7E29

square

#1F447E #7E1F73 #7E591F #1F7E29

split-complementary

#1F447E #7E291F #737E1F

monochromatic

#070F1C #13294D #1F447E #2B5FAF #467CD1

Accessibility & contrast

On white

9.60

#1F447E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#1F447E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F447E

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F447E	#FFFFFF	#000000	##FFFFFF
##1F447E	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274A80

Deuteranopia (green-blind)

#14417D

Tritanopia (blue-blind)

#00525B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1f447e;
/* rgb */ color: rgb(31, 68, 126);
/* oklch */ color: oklch(39.3% 0.107 259.1);

Tailwind

colors: {
  custom: {
    50: '#6877a4',
    500: '#1f447e',
    950: '#000000',
  },
}

SCSS

$custom: #1f447e;
$custom-light: #6877a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f447e",
  "rgb": {
    "r": 31,
    "g": 68,
    "b": 126
  },
  "hsl": {
    "h": 216.632,
    "s": 60.51,
    "l": 30.784
  },
  "oklch": {
    "l": 0.39253,
    "c": 0.10701,
    "h": 259.1
  },
  "luminance": 0.05932
}

Semantic roles & 50–950 ramp

primary

#1F447E

secondary

#B18848

accent

#A644E4

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1F447E

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

Preview Lab → · Contrast checker → · Palette generator →