#1F2F90#1F2F90

#1F2F90 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.3% C 0.160 H 269.1°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F90
RGB	rgb(31, 47, 144)
HSL	hsl(232, 65%, 34%)
HSV	hsv(232, 78%, 56%)
CMYK	cmyk(78.5%, 67.4%, 0%, 43.5%)
CIE-LAB	lab(24.76, 29.98, -55.18)
CIE-LCH	lch(24.76, 62.80, 298.52°)
OKLab	oklab(36.33% -0.0024 -0.1597)
OKLCH	oklch(36.33% 0.16 269.1)
XYZ	xyz(6.6139, 4.3372, 26.8687)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F90 #90801F

analogous

#1F6890 #1F2F90 #471F90

triadic

#1F2F90 #901F2F #2F901F

tetradic

#1F2F90 #901F68 #90801F #1F9047

square

#1F2F90 #901F68 #90801F #1F9047

split-complementary

#1F2F90 #90471F #68901F

monochromatic

#090E2B #141F5E #1F2F90 #2A3FC2 #5064D9

Accessibility & contrast

On white

11.24

#1F2F90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#1F2F90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F90

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F90	#FFFFFF	#000000	##FFFFFF
##1F2F90	1.00	11.24	1.87	11.24
#FFFFFF	11.24	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004093

Deuteranopia (green-blind)

#00358E

Tritanopia (blue-blind)

#00495B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1f2f90;
/* rgb */ color: rgb(31, 47, 144);
/* oklch */ color: oklch(36.3% 0.160 269.1);

Tailwind

colors: {
  custom: {
    50: '#6e67b1',
    500: '#1f2f90',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f90;
$custom-light: #6e67b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f90",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 144
  },
  "hsl": {
    "h": 231.504,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.36329,
    "c": 0.15969,
    "h": 269.1
  },
  "luminance": 0.04338
}

Semantic roles & 50–950 ramp

primary

#1F2F90

secondary

#BCAD4E

accent

#D040E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1F2F90

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

Preview Lab → · Contrast checker → · Palette generator →