#1F2D80#1F2D80

#1F2D80 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.4% C 0.140 H 269.9°. Best body text is #FFFFFF at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#1F2D80
RGB	rgb(31, 45, 128)
HSL	hsl(231, 61%, 31%)
HSV	hsv(231, 76%, 50%)
CMYK	cmyk(75.8%, 64.8%, 0%, 49.8%)
CIE-LAB	lab(22.74, 25.20, -48.48)
CIE-LCH	lch(22.74, 54.64, 297.46°)
OKLab	oklab(34.39% -0.0003 -0.1401)
OKLCH	oklch(34.39% 0.14 269.9)
XYZ	xyz(5.3984, 3.7260, 20.8526)
Luminance	0.0373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2D80 #80721F

analogous

#1F5D80 #1F2D80 #411F80

triadic

#1F2D80 #801F2D #2D801F

tetradic

#1F2D80 #801F5D #80721F #1F8041

square

#1F2D80 #801F5D #80721F #1F8041

split-complementary

#1F2D80 #80411F #5D801F

monochromatic

#070A1D #131C4F #1F2D80 #2B3EB1 #475BD2

Accessibility & contrast

On white

12.03

#1F2D80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1F2D80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2D80

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2D80	#FFFFFF	#000000	##FFFFFF
##1F2D80	1.00	12.03	1.75	12.03
#FFFFFF	12.03	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B83

Deuteranopia (green-blind)

#00327E

Tritanopia (blue-blind)

#004252

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f2d80;
/* rgb */ color: rgb(31, 45, 128);
/* oklch */ color: oklch(34.4% 0.140 269.9);

Tailwind

colors: {
  custom: {
    50: '#6a65a6',
    500: '#1f2d80',
    950: '#000000',
  },
}

SCSS

$custom: #1f2d80;
$custom-light: #6a65a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2d80",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 128
  },
  "hsl": {
    "h": 231.34,
    "s": 61.006,
    "l": 31.176
  },
  "oklch": {
    "l": 0.34392,
    "c": 0.14008,
    "h": 269.9
  },
  "luminance": 0.03727
}

Semantic roles & 50–950 ramp

primary

#1F2D80

secondary

#B3A348

accent

#CD44E4

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1F2D80

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

Preview Lab → · Contrast checker → · Palette generator →