#1F2982#1F2982

#1F2982 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.8% C 0.148 H 270.9°. Best body text is #FFFFFF at 12.37:1 contrast (WCAG AA passes).

Color values

HEX	#1F2982
RGB	rgb(31, 41, 130)
HSL	hsl(234, 61%, 32%)
HSV	hsv(234, 76%, 51%)
CMYK	cmyk(76.2%, 68.5%, 0%, 49%)
CIE-LAB	lab(21.90, 28.68, -51.12)
CIE-LCH	lch(21.90, 58.62, 299.29°)
OKLab	oklab(33.83% 0.0023 -0.1478)
OKLCH	oklch(33.83% 0.148 270.9)
XYZ	xyz(5.3859, 3.4883, 21.5042)
Luminance	0.0349 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2982 #82781F

analogous

#1F5B82 #1F2982 #471F82

triadic

#1F2982 #821F29 #29821F

tetradic

#1F2982 #821F5B #82781F #1F8247

square

#1F2982 #821F5B #82781F #1F8247

split-complementary

#1F2982 #82471F #5B821F

monochromatic

#070A1F #131951 #1F2982 #2B39B3 #4856D3

Accessibility & contrast

On white

12.37

#1F2982 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1F2982 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2982

12.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2982	#FFFFFF	#000000	##FFFFFF
##1F2982	1.00	12.37	1.70	12.37
#FFFFFF	12.37	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003985

Deuteranopia (green-blind)

#003080

Tritanopia (blue-blind)

#004151

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2982;
/* rgb */ color: rgb(31, 41, 130);
/* oklch */ color: oklch(33.8% 0.148 270.9);

Tailwind

colors: {
  custom: {
    50: '#6b63a7',
    500: '#1f2982',
    950: '#000000',
  },
}

SCSS

$custom: #1f2982;
$custom-light: #6b63a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2982",
  "rgb": {
    "r": 31,
    "g": 41,
    "b": 130
  },
  "hsl": {
    "h": 233.939,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.33832,
    "c": 0.14787,
    "h": 270.9
  },
  "luminance": 0.03489
}

Semantic roles & 50–950 ramp

primary

#1F2982

secondary

#B5AA48

accent

#D443E5

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#080510

muted

#7A797F

Preview Lab

Preview with #1F2982

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

Preview Lab → · Contrast checker → · Palette generator →