#1F2E83#1F2E83

#1F2E83 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.9% C 0.143 H 269.5°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#1F2E83
RGB	rgb(31, 46, 131)
HSL	hsl(231, 62%, 32%)
HSV	hsv(231, 76%, 51%)
CMYK	cmyk(76.3%, 64.9%, 0%, 48.6%)
CIE-LAB	lab(23.28, 25.67, -49.49)
CIE-LCH	lch(23.28, 55.75, 297.42°)
OKLab	oklab(34.87% -0.0011 -0.143)
OKLCH	oklch(34.87% 0.143 269.5)
XYZ	xyz(5.6374, 3.8834, 21.9208)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2E83 #83741F

analogous

#1F6083 #1F2E83 #421F83

triadic

#1F2E83 #831F2E #2E831F

tetradic

#1F2E83 #831F60 #83741F #1F8342

square

#1F2E83 #831F60 #83741F #1F8342

split-complementary

#1F2E83 #83421F #60831F

monochromatic

#080B20 #131D52 #1F2E83 #2B3FB4 #495DD4

Accessibility & contrast

On white

11.82

#1F2E83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1F2E83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2E83

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2E83	#FFFFFF	#000000	##FFFFFF
##1F2E83	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C86

Deuteranopia (green-blind)

#003381

Tritanopia (blue-blind)

#004454

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f2e83;
/* rgb */ color: rgb(31, 46, 131);
/* oklch */ color: oklch(34.9% 0.143 269.5);

Tailwind

colors: {
  custom: {
    50: '#6b66a8',
    500: '#1f2e83',
    950: '#000000',
  },
}

SCSS

$custom: #1f2e83;
$custom-light: #6b66a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2e83",
  "rgb": {
    "r": 31,
    "g": 46,
    "b": 131
  },
  "hsl": {
    "h": 231,
    "s": 61.728,
    "l": 31.765
  },
  "oklch": {
    "l": 0.34873,
    "c": 0.14303,
    "h": 269.5
  },
  "luminance": 0.03884
}

Semantic roles & 50–950 ramp

primary

#1F2E83

secondary

#B6A548

accent

#CD43E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1F2E83

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

Preview Lab → · Contrast checker → · Palette generator →