#1F2C90#1F2C90

#1F2C90 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.8% C 0.163 H 269.7°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C90
RGB	rgb(31, 44, 144)
HSL	hsl(233, 65%, 34%)
HSV	hsv(233, 78%, 56%)
CMYK	cmyk(78.5%, 69.4%, 0%, 43.5%)
CIE-LAB	lab(24.02, 31.96, -56.39)
CIE-LCH	lch(24.02, 64.82, 299.54°)
OKLab	oklab(35.79% -0.0007 -0.1632)
OKLCH	oklch(35.79% 0.163 269.7)
XYZ	xyz(6.4981, 4.1056, 26.8301)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C90 #90831F

analogous

#1F6590 #1F2C90 #4B1F90

triadic

#1F2C90 #901F2C #2C901F

tetradic

#1F2C90 #901F65 #90831F #1F904B

square

#1F2C90 #901F65 #90831F #1F904B

split-complementary

#1F2C90 #904B1F #65901F

monochromatic

#090D2B #141D5E #1F2C90 #2A3BC2 #5060D9

Accessibility & contrast

On white

11.53

#1F2C90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1F2C90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C90

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C90	#FFFFFF	#000000	##FFFFFF
##1F2C90	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F93

Deuteranopia (green-blind)

#00348E

Tritanopia (blue-blind)

#00475A

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1f2c90;
/* rgb */ color: rgb(31, 44, 144);
/* oklch */ color: oklch(35.8% 0.163 269.7);

Tailwind

colors: {
  custom: {
    50: '#6f65b2',
    500: '#1f2c90',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c90;
$custom-light: #6f65b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c90",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 144
  },
  "hsl": {
    "h": 233.097,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.3579,
    "c": 0.16323,
    "h": 269.7
  },
  "luminance": 0.04106
}

Semantic roles & 50–950 ramp

primary

#1F2C90

secondary

#BCB04E

accent

#D440E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080511

muted

#7B7A80

Preview Lab

Preview with #1F2C90

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

Preview Lab → · Contrast checker → · Palette generator →