#1F376F#1F376F

#1F376F is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.1% C 0.102 H 264.3°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#1F376F
RGB	rgb(31, 55, 111)
HSL	hsl(222, 56%, 28%)
HSV	hsv(222, 72%, 44%)
CMYK	cmyk(72.1%, 50.5%, 0%, 56.5%)
CIE-LAB	lab(24.23, 11.41, -35.27)
CIE-LCH	lch(24.23, 37.07, 287.93°)
OKLab	oklab(35.07% -0.01 -0.1011)
OKLCH	oklch(35.07% 0.102 264.3)
XYZ	xyz(4.7995, 4.1709, 15.5880)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F376F #6F571F

analogous

#1F5F6F #1F376F #2F1F6F

triadic

#1F376F #6F1F37 #376F1F

tetradic

#1F376F #6F1F5F #6F571F #1F6F2F

square

#1F376F #6F1F5F #6F571F #1F6F2F

split-complementary

#1F376F #6F2F1F #5F6F1F

monochromatic

#070C18 #121F3F #1F376F #2C4F9F #3F69C9

Accessibility & contrast

On white

11.45

#1F376F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1F376F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F376F

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F376F	#FFFFFF	#000000	##FFFFFF
##1F376F	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#193D71

Deuteranopia (green-blind)

#06366E

Tritanopia (blue-blind)

#00444D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1f376f;
/* rgb */ color: rgb(31, 55, 111);
/* oklch */ color: oklch(35.1% 0.102 264.3);

Tailwind

colors: {
  custom: {
    50: '#656d99',
    500: '#1f376f',
    950: '#000000',
  },
}

SCSS

$custom: #1f376f;
$custom-light: #656d99;
$custom-dark: #000000;

JSON

{
  "hex": "#1f376f",
  "rgb": {
    "r": 31,
    "g": 55,
    "b": 111
  },
  "hsl": {
    "h": 222,
    "s": 56.338,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35074,
    "c": 0.10158,
    "h": 264.3
  },
  "luminance": 0.04171
}

Semantic roles & 50–950 ramp

primary

#1F376F

secondary

#A38747

accent

#B248E0

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1F376F

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

Preview Lab → · Contrast checker → · Palette generator →