#1F4384#1F4384

#1F4384 is a dark, moderate blue. Relative luminance 0.060; OKLCH L 39.5% C 0.117 H 261.1°. Best body text is #FFFFFF at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#1F4384
RGB	rgb(31, 67, 132)
HSL	hsl(219, 62%, 32%)
HSV	hsv(219, 77%, 52%)
CMYK	cmyk(76.5%, 49.2%, 0%, 48.2%)
CIE-LAB	lab(29.34, 11.49, -40.29)
CIE-LCH	lch(29.34, 41.89, 285.91°)
OKLab	oklab(39.46% -0.0181 -0.1156)
OKLCH	oklch(39.46% 0.117 261.1)
XYZ	xyz(6.7356, 5.9708, 22.6228)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4384 #84601F

analogous

#1F7684 #1F4384 #2E1F84

triadic

#1F4384 #841F43 #43841F

tetradic

#1F4384 #841F76 #84601F #1F842E

square

#1F4384 #841F76 #84601F #1F842E

split-complementary

#1F4384 #842E1F #76841F

monochromatic

#081121 #132A52 #1F4384 #2B5CB6 #497BD4

Accessibility & contrast

On white

9.57

#1F4384 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#1F4384 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4384

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4384	#FFFFFF	#000000	##FFFFFF
##1F4384	1.00	9.57	2.19	9.57
#FFFFFF	9.57	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4A86

Deuteranopia (green-blind)

#024183

Tritanopia (blue-blind)

#00525D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1f4384;
/* rgb */ color: rgb(31, 67, 132);
/* oklch */ color: oklch(39.5% 0.117 261.1);

Tailwind

colors: {
  custom: {
    50: '#6a76a8',
    500: '#1f4384',
    950: '#000000',
  },
}

SCSS

$custom: #1f4384;
$custom-light: #6a76a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4384",
  "rgb": {
    "r": 31,
    "g": 67,
    "b": 132
  },
  "hsl": {
    "h": 218.614,
    "s": 61.963,
    "l": 31.961
  },
  "oklch": {
    "l": 0.3946,
    "c": 0.11704,
    "h": 261.1
  },
  "luminance": 0.05972
}

Semantic roles & 50–950 ramp

primary

#1F4384

secondary

#B78F48

accent

#AB43E5

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1F4384

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

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