#1F386D#1F386D

#1F386D is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.2% C 0.097 H 263.3°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#1F386D
RGB	rgb(31, 56, 109)
HSL	hsl(221, 56%, 27%)
HSV	hsv(221, 72%, 43%)
CMYK	cmyk(71.6%, 48.6%, 0%, 57.3%)
CIE-LAB	lab(24.40, 9.90, -33.71)
CIE-LCH	lch(24.40, 35.14, 286.37°)
OKLab	oklab(35.16% -0.0114 -0.0965)
OKLCH	oklch(35.16% 0.097 263.3)
XYZ	xyz(4.7386, 4.2233, 15.0305)
Luminance	0.0422 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F386D #6D541F

analogous

#1F5F6D #1F386D #2D1F6D

triadic

#1F386D #6D1F38 #386D1F

tetradic

#1F386D #6D1F5F #6D541F #1F6D2D

square

#1F386D #6D1F5F #6D541F #1F6D2D

split-complementary

#1F386D #6D2D1F #5F6D1F

monochromatic

#070C18 #11203D #1F386D #2D509D #3E6AC8

Accessibility & contrast

On white

11.38

#1F386D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#1F386D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F386D

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F386D	#FFFFFF	#000000	##FFFFFF
##1F386D	1.00	11.38	1.84	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D3E6F

Deuteranopia (green-blind)

#0E376C

Tritanopia (blue-blind)

#00444D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1f386d;
/* rgb */ color: rgb(31, 56, 109);
/* oklch */ color: oklch(35.2% 0.097 263.3);

Tailwind

colors: {
  custom: {
    50: '#656e97',
    500: '#1f386d',
    950: '#000000',
  },
}

SCSS

$custom: #1f386d;
$custom-light: #656e97;
$custom-dark: #000000;

JSON

{
  "hex": "#1f386d",
  "rgb": {
    "r": 31,
    "g": 56,
    "b": 109
  },
  "hsl": {
    "h": 220.769,
    "s": 55.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.35158,
    "c": 0.09718,
    "h": 263.3
  },
  "luminance": 0.04224
}

Semantic roles & 50–950 ramp

primary

#1F386D

secondary

#A18447

accent

#AF49DF

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #1F386D

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

Preview Lab → · Contrast checker → · Palette generator →