#1F396D#1F396D

#1F396D is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.4% C 0.096 H 262.6°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#1F396D
RGB	rgb(31, 57, 109)
HSL	hsl(220, 56%, 27%)
HSV	hsv(220, 72%, 43%)
CMYK	cmyk(71.6%, 47.7%, 0%, 57.3%)
CIE-LAB	lab(24.71, 9.20, -33.22)
CIE-LCH	lch(24.71, 34.47, 285.48°)
OKLab	oklab(35.4% -0.0124 -0.095)
OKLCH	oklch(35.4% 0.096 262.6)
XYZ	xyz(4.7875, 4.3212, 15.0468)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F396D #6D531F

analogous

#1F606D #1F396D #2C1F6D

triadic

#1F396D #6D1F39 #396D1F

tetradic

#1F396D #6D1F60 #6D531F #1F6D2C

square

#1F396D #6D1F60 #6D531F #1F6D2C

split-complementary

#1F396D #6D2C1F #606D1F

monochromatic

#070C18 #11203D #1F396D #2D529D #3E6CC8

Accessibility & contrast

On white

11.26

#1F396D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1F396D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F396D

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F396D	#FFFFFF	#000000	##FFFFFF
##1F396D	1.00	11.26	1.86	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F3E6F

Deuteranopia (green-blind)

#10376C

Tritanopia (blue-blind)

#00454D

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1f396d;
/* rgb */ color: rgb(31, 57, 109);
/* oklch */ color: oklch(35.4% 0.096 262.6);

Tailwind

colors: {
  custom: {
    50: '#656e97',
    500: '#1f396d',
    950: '#000000',
  },
}

SCSS

$custom: #1f396d;
$custom-light: #656e97;
$custom-dark: #000000;

JSON

{
  "hex": "#1f396d",
  "rgb": {
    "r": 31,
    "g": 57,
    "b": 109
  },
  "hsl": {
    "h": 220,
    "s": 55.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.35396,
    "c": 0.09584,
    "h": 262.6
  },
  "luminance": 0.04322
}

Semantic roles & 50–950 ramp

primary

#1F396D

secondary

#A18347

accent

#AD49DF

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #1F396D

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

Preview Lab → · Contrast checker → · Palette generator →