#1F447C#1F447C

#1F447C is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.1% C 0.104 H 258.6°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#1F447C
RGB	rgb(31, 68, 124)
HSL	hsl(216, 60%, 30%)
HSV	hsv(216, 75%, 49%)
CMYK	cmyk(75%, 45.2%, 0%, 51.4%)
CIE-LAB	lab(29.11, 7.59, -35.67)
CIE-LCH	lch(29.11, 36.47, 282.01°)
OKLab	oklab(39.11% -0.0206 -0.102)
OKLCH	oklch(39.11% 0.104 258.6)
XYZ	xyz(6.2690, 5.8801, 19.8695)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F447C #7C571F

analogous

#1F727C #1F447C #281F7C

triadic

#1F447C #7C1F44 #447C1F

tetradic

#1F447C #7C1F72 #7C571F #1F7C28

square

#1F447C #7C1F72 #7C571F #1F7C28

split-complementary

#1F447C #7C281F #727C1F

monochromatic

#070E1A #13294B #1F447C #2B5FAD #457CD0

Accessibility & contrast

On white

9.65

#1F447C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1F447C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F447C

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F447C	#FFFFFF	#000000	##FFFFFF
##1F447C	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28497E

Deuteranopia (green-blind)

#17417B

Tritanopia (blue-blind)

#00515A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1f447c;
/* rgb */ color: rgb(31, 68, 124);
/* oklch */ color: oklch(39.1% 0.104 258.6);

Tailwind

colors: {
  custom: {
    50: '#6877a2',
    500: '#1f447c',
    950: '#000000',
  },
}

SCSS

$custom: #1f447c;
$custom-light: #6877a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f447c",
  "rgb": {
    "r": 31,
    "g": 68,
    "b": 124
  },
  "hsl": {
    "h": 216.129,
    "s": 60,
    "l": 30.392
  },
  "oklch": {
    "l": 0.3911,
    "c": 0.10409,
    "h": 258.6
  },
  "luminance": 0.05881
}

Semantic roles & 50–950 ramp

primary

#1F447C

secondary

#AF8648

accent

#A445E3

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1F447C

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

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