#1F2F84#1F2F84

#1F2F84 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.2% C 0.143 H 269.2°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F84
RGB	rgb(31, 47, 132)
HSL	hsl(230, 62%, 32%)
HSV	hsv(230, 77%, 52%)
CMYK	cmyk(76.5%, 64.4%, 0%, 48.2%)
CIE-LAB	lab(23.64, 25.37, -49.54)
CIE-LCH	lch(23.64, 55.66, 297.12°)
OKLab	oklab(35.16% -0.0019 -0.1432)
OKLCH	oklch(35.16% 0.143 269.2)
XYZ	xyz(5.7450, 3.9897, 22.2926)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F84 #84741F

analogous

#1F6284 #1F2F84 #421F84

triadic

#1F2F84 #841F2F #2F841F

tetradic

#1F2F84 #841F62 #84741F #1F8442

square

#1F2F84 #841F62 #84741F #1F8442

split-complementary

#1F2F84 #84421F #62841F

monochromatic

#080C21 #131D52 #1F2F84 #2B41B6 #495FD4

Accessibility & contrast

On white

11.68

#1F2F84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1F2F84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F84

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F84	#FFFFFF	#000000	##FFFFFF
##1F2F84	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D87

Deuteranopia (green-blind)

#003482

Tritanopia (blue-blind)

#004555

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1f2f84;
/* rgb */ color: rgb(31, 47, 132);
/* oklch */ color: oklch(35.2% 0.143 269.2);

Tailwind

colors: {
  custom: {
    50: '#6b67a9',
    500: '#1f2f84',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f84;
$custom-light: #6b67a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f84",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 132
  },
  "hsl": {
    "h": 230.495,
    "s": 61.963,
    "l": 31.961
  },
  "oklch": {
    "l": 0.35163,
    "c": 0.14317,
    "h": 269.2
  },
  "luminance": 0.0399
}

Semantic roles & 50–950 ramp

primary

#1F2F84

secondary

#B7A548

accent

#CB43E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1F2F84

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

Preview Lab → · Contrast checker → · Palette generator →