#1F396E#1F396E

#1F396E is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.5% C 0.097 H 262.8°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#1F396E
RGB	rgb(31, 57, 110)
HSL	hsl(220, 56%, 28%)
HSV	hsv(220, 72%, 43%)
CMYK	cmyk(71.8%, 48.2%, 0%, 56.9%)
CIE-LAB	lab(24.77, 9.60, -33.75)
CIE-LCH	lch(24.77, 35.09, 285.88°)
OKLab	oklab(35.47% -0.0122 -0.0966)
OKLCH	oklch(35.47% 0.097 262.8)
XYZ	xyz(4.8417, 4.3429, 15.3319)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F396E #6E541F

analogous

#1F606E #1F396E #2C1F6E

triadic

#1F396E #6E1F39 #396E1F

tetradic

#1F396E #6E1F60 #6E541F #1F6E2C

square

#1F396E #6E1F60 #6E541F #1F6E2C

split-complementary

#1F396E #6E2C1F #606E1F

monochromatic

#070C18 #12203E #1F396E #2C529E #3F6CC9

Accessibility & contrast

On white

11.24

#1F396E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#1F396E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F396E

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F396E	#FFFFFF	#000000	##FFFFFF
##1F396E	1.00	11.24	1.87	11.24
#FFFFFF	11.24	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E3F70

Deuteranopia (green-blind)

#0F376D

Tritanopia (blue-blind)

#00454E

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1f396e;
/* rgb */ color: rgb(31, 57, 110);
/* oklch */ color: oklch(35.5% 0.097 262.8);

Tailwind

colors: {
  custom: {
    50: '#656e98',
    500: '#1f396e',
    950: '#000000',
  },
}

SCSS

$custom: #1f396e;
$custom-light: #656e98;
$custom-dark: #000000;

JSON

{
  "hex": "#1f396e",
  "rgb": {
    "r": 31,
    "g": 57,
    "b": 110
  },
  "hsl": {
    "h": 220.253,
    "s": 56.028,
    "l": 27.647
  },
  "oklch": {
    "l": 0.3547,
    "c": 0.09736,
    "h": 262.8
  },
  "luminance": 0.04343
}

Semantic roles & 50–950 ramp

primary

#1F396E

secondary

#A28447

accent

#AE48DF

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #1F396E

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

Preview Lab → · Contrast checker → · Palette generator →