#1F2D8A#1F2D8A

#1F2D8A is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.4% C 0.154 H 269.7°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#1F2D8A
RGB	rgb(31, 45, 138)
HSL	hsl(232, 63%, 33%)
HSV	hsv(232, 78%, 54%)
CMYK	cmyk(77.5%, 67.4%, 0%, 45.9%)
CIE-LAB	lab(23.68, 29.04, -53.22)
CIE-LCH	lch(23.68, 60.63, 298.62°)
OKLab	oklab(35.37% -0.0008 -0.1539)
OKLCH	oklch(35.37% 0.154 269.7)
XYZ	xyz(6.0893, 4.0024, 24.4914)
Luminance	0.0400 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2D8A #8A7C1F

analogous

#1F628A #1F2D8A #471F8A

triadic

#1F2D8A #8A1F2D #2D8A1F

tetradic

#1F2D8A #8A1F62 #8A7C1F #1F8A47

square

#1F2D8A #8A1F62 #8A7C1F #1F8A47

split-complementary

#1F2D8A #8A471F #628A1F

monochromatic

#090C26 #141D58 #1F2D8A #2A3DBC #4C5FD7

Accessibility & contrast

On white

11.66

#1F2D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1F2D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2D8A

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2D8A	#FFFFFF	#000000	##FFFFFF
##1F2D8A	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8D

Deuteranopia (green-blind)

#003388

Tritanopia (blue-blind)

#004657

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1f2d8a;
/* rgb */ color: rgb(31, 45, 138);
/* oklch */ color: oklch(35.4% 0.154 269.7);

Tailwind

colors: {
  custom: {
    50: '#6d66ad',
    500: '#1f2d8a',
    950: '#000000',
  },
}

SCSS

$custom: #1f2d8a;
$custom-light: #6d66ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2d8a",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 138
  },
  "hsl": {
    "h": 232.15,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.35366,
    "c": 0.15395,
    "h": 269.7
  },
  "luminance": 0.04003
}

Semantic roles & 50–950 ramp

primary

#1F2D8A

secondary

#BAAB4B

accent

#D141E6

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1F2D8A

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

Preview Lab → · Contrast checker → · Palette generator →