#1F386F#1F386F

#1F386F is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.3% C 0.100 H 263.7°. Best body text is #FFFFFF at 11.33:1 contrast (WCAG AA passes).

Color values

HEX	#1F386F
RGB	rgb(31, 56, 111)
HSL	hsl(221, 56%, 28%)
HSV	hsv(221, 72%, 44%)
CMYK	cmyk(72.1%, 49.5%, 0%, 56.5%)
CIE-LAB	lab(24.53, 10.70, -34.77)
CIE-LCH	lch(24.53, 36.38, 287.11°)
OKLab	oklab(35.31% -0.011 -0.0996)
OKLCH	oklch(35.31% 0.1 263.7)
XYZ	xyz(4.8475, 4.2669, 15.6040)
Luminance	0.0427 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F386F #6F561F

analogous

#1F606F #1F386F #2E1F6F

triadic

#1F386F #6F1F38 #386F1F

tetradic

#1F386F #6F1F60 #6F561F #1F6F2E

square

#1F386F #6F1F60 #6F561F #1F6F2E

split-complementary

#1F386F #6F2E1F #606F1F

monochromatic

#070C18 #12203F #1F386F #2C509F #3F6AC9

Accessibility & contrast

On white

11.33

#1F386F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1F386F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F386F

11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F386F	#FFFFFF	#000000	##FFFFFF
##1F386F	1.00	11.33	1.85	11.33
#FFFFFF	11.33	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B3E71

Deuteranopia (green-blind)

#09376E

Tritanopia (blue-blind)

#00454E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1f386f;
/* rgb */ color: rgb(31, 56, 111);
/* oklch */ color: oklch(35.3% 0.100 263.7);

Tailwind

colors: {
  custom: {
    50: '#656e99',
    500: '#1f386f',
    950: '#000000',
  },
}

SCSS

$custom: #1f386f;
$custom-light: #656e99;
$custom-dark: #000000;

JSON

{
  "hex": "#1f386f",
  "rgb": {
    "r": 31,
    "g": 56,
    "b": 111
  },
  "hsl": {
    "h": 221.25,
    "s": 56.338,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35309,
    "c": 0.10023,
    "h": 263.7
  },
  "luminance": 0.04267
}

Semantic roles & 50–950 ramp

primary

#1F386F

secondary

#A38647

accent

#B048E0

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1F386F

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

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