#1F3C82#1F3C82

#1F3C82 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.7% C 0.123 H 264.3°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#1F3C82
RGB	rgb(31, 60, 130)
HSL	hsl(222, 61%, 32%)
HSV	hsv(222, 76%, 51%)
CMYK	cmyk(76.2%, 53.8%, 0%, 49%)
CIE-LAB	lab(27.11, 15.54, -42.63)
CIE-LCH	lch(27.11, 45.37, 290.02°)
OKLab	oklab(37.72% -0.0122 -0.1227)
OKLCH	oklch(37.72% 0.123 264.3)
XYZ	xyz(6.2088, 5.1341, 21.7785)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3C82 #82651F

analogous

#1F6E82 #1F3C82 #341F82

triadic

#1F3C82 #821F3C #3C821F

tetradic

#1F3C82 #821F6E #82651F #1F8234

square

#1F3C82 #821F6E #82651F #1F8234

split-complementary

#1F3C82 #82341F #6E821F

monochromatic

#070E1F #132551 #1F3C82 #2B53B3 #4871D3

Accessibility & contrast

On white

10.36

#1F3C82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#1F3C82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3C82

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3C82	#FFFFFF	#000000	##FFFFFF
##1F3C82	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4584

Deuteranopia (green-blind)

#003C81

Tritanopia (blue-blind)

#004D59

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1f3c82;
/* rgb */ color: rgb(31, 60, 130);
/* oklch */ color: oklch(37.7% 0.123 264.3);

Tailwind

colors: {
  custom: {
    50: '#6a71a7',
    500: '#1f3c82',
    950: '#000000',
  },
}

SCSS

$custom: #1f3c82;
$custom-light: #6a71a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3c82",
  "rgb": {
    "r": 31,
    "g": 60,
    "b": 130
  },
  "hsl": {
    "h": 222.424,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37716,
    "c": 0.12328,
    "h": 264.3
  },
  "luminance": 0.05135
}

Semantic roles & 50–950 ramp

primary

#1F3C82

secondary

#B59548

accent

#B543E5

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1F3C82

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

Preview Lab → · Contrast checker → · Palette generator →