#1F4083#1F4083

#1F4083 is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.7% C 0.119 H 262.5°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#1F4083
RGB	rgb(31, 64, 131)
HSL	hsl(220, 62%, 32%)
HSV	hsv(220, 76%, 51%)
CMYK	cmyk(76.3%, 51.1%, 0%, 48.6%)
CIE-LAB	lab(28.37, 13.15, -41.23)
CIE-LCH	lch(28.37, 43.27, 287.70°)
OKLab	oklab(38.7% -0.0156 -0.1185)
OKLCH	oklch(38.7% 0.119 262.5)
XYZ	xyz(6.4937, 5.5961, 22.2062)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4083 #83621F

analogous

#1F7283 #1F4083 #301F83

triadic

#1F4083 #831F40 #40831F

tetradic

#1F4083 #831F72 #83621F #1F8330

square

#1F4083 #831F72 #83621F #1F8330

split-complementary

#1F4083 #83301F #72831F

monochromatic

#081020 #132852 #1F4083 #2B58B4 #4977D4

Accessibility & contrast

On white

9.91

#1F4083 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1F4083 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4083

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4083	#FFFFFF	#000000	##FFFFFF
##1F4083	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194885

Deuteranopia (green-blind)

#003F82

Tritanopia (blue-blind)

#00505B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1f4083;
/* rgb */ color: rgb(31, 64, 131);
/* oklch */ color: oklch(38.7% 0.119 262.5);

Tailwind

colors: {
  custom: {
    50: '#6a74a7',
    500: '#1f4083',
    950: '#000000',
  },
}

SCSS

$custom: #1f4083;
$custom-light: #6a74a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4083",
  "rgb": {
    "r": 31,
    "g": 64,
    "b": 131
  },
  "hsl": {
    "h": 220.2,
    "s": 61.728,
    "l": 31.765
  },
  "oklch": {
    "l": 0.38696,
    "c": 0.11948,
    "h": 262.5
  },
  "luminance": 0.05597
}

Semantic roles & 50–950 ramp

primary

#1F4083

secondary

#B69248

accent

#AF43E5

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1F4083

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

Preview Lab → · Contrast checker → · Palette generator →