#1F3182#1F3182

#1F3182 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.4% C 0.138 H 268.6°. Best body text is #FFFFFF at 11.54:1 contrast (WCAG AA passes).

Color values

HEX	#1F3182
RGB	rgb(31, 49, 130)
HSL	hsl(229, 61%, 32%)
HSV	hsv(229, 76%, 51%)
CMYK	cmyk(76.2%, 62.3%, 0%, 49%)
CIE-LAB	lab(24.00, 23.21, -47.70)
CIE-LCH	lch(24.00, 53.05, 295.95°)
OKLab	oklab(35.37% -0.0033 -0.1377)
OKLCH	oklch(35.37% 0.138 268.6)
XYZ	xyz(5.6913, 4.0990, 21.6060)
Luminance	0.0410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3182 #82701F

analogous

#1F6382 #1F3182 #3F1F82

triadic

#1F3182 #821F31 #31821F

tetradic

#1F3182 #821F63 #82701F #1F823F

square

#1F3182 #821F63 #82701F #1F823F

split-complementary

#1F3182 #823F1F #63821F

monochromatic

#070C1F #131E51 #1F3182 #2B44B3 #4861D3

Accessibility & contrast

On white

11.54

#1F3182 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1F3182 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3182

11.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3182	#FFFFFF	#000000	##FFFFFF
##1F3182	1.00	11.54	1.82	11.54
#FFFFFF	11.54	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E85

Deuteranopia (green-blind)

#003580

Tritanopia (blue-blind)

#004654

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1f3182;
/* rgb */ color: rgb(31, 49, 130);
/* oklch */ color: oklch(35.4% 0.138 268.6);

Tailwind

colors: {
  custom: {
    50: '#6a68a7',
    500: '#1f3182',
    950: '#000000',
  },
}

SCSS

$custom: #1f3182;
$custom-light: #6a68a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3182",
  "rgb": {
    "r": 31,
    "g": 49,
    "b": 130
  },
  "hsl": {
    "h": 229.091,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35373,
    "c": 0.13777,
    "h": 268.6
  },
  "luminance": 0.041
}

Semantic roles & 50–950 ramp

primary

#1F3182

secondary

#B5A148

accent

#C743E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1F3182

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

Preview Lab → · Contrast checker → · Palette generator →