#1F367C#1F367C

#1F367C is a dark, vivid blue. Relative luminance 0.044; OKLCH L 35.9% C 0.122 H 266.5°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#1F367C
RGB	rgb(31, 54, 124)
HSL	hsl(225, 60%, 30%)
HSV	hsv(225, 75%, 49%)
CMYK	cmyk(75%, 56.5%, 0%, 51.4%)
CIE-LAB	lab(24.90, 17.33, -42.44)
CIE-LCH	lch(24.90, 45.85, 292.22°)
OKLab	oklab(35.9% -0.0076 -0.1222)
OKLCH	oklch(35.9% 0.122 266.5)
XYZ	xyz(5.5211, 4.3843, 19.6202)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F367C #7C651F

analogous

#1F647C #1F367C #361F7C

triadic

#1F367C #7C1F36 #367C1F

tetradic

#1F367C #7C1F64 #7C651F #1F7C36

square

#1F367C #7C1F64 #7C651F #1F7C36

split-complementary

#1F367C #7C361F #647C1F

monochromatic

#070B1A #13214B #1F367C #2B4BAD #4567D0

Accessibility & contrast

On white

11.19

#1F367C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#1F367C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F367C

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F367C	#FFFFFF	#000000	##FFFFFF
##1F367C	1.00	11.19	1.88	11.19
#FFFFFF	11.19	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00407E

Deuteranopia (green-blind)

#00377B

Tritanopia (blue-blind)

#004753

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1f367c;
/* rgb */ color: rgb(31, 54, 124);
/* oklch */ color: oklch(35.9% 0.122 266.5);

Tailwind

colors: {
  custom: {
    50: '#686ca2',
    500: '#1f367c',
    950: '#000000',
  },
}

SCSS

$custom: #1f367c;
$custom-light: #686ca2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f367c",
  "rgb": {
    "r": 31,
    "g": 54,
    "b": 124
  },
  "hsl": {
    "h": 225.161,
    "s": 60,
    "l": 30.392
  },
  "oklch": {
    "l": 0.35896,
    "c": 0.12245,
    "h": 266.5
  },
  "luminance": 0.04385
}

Semantic roles & 50–950 ramp

primary

#1F367C

secondary

#AF9648

accent

#BC45E3

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1F367C

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

Preview Lab → · Contrast checker → · Palette generator →