#1F2C75#1F2C75

#1F2C75 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.2% C 0.126 H 270.3°. Best body text is #FFFFFF at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C75
RGB	rgb(31, 44, 117)
HSL	hsl(231, 58%, 29%)
HSV	hsv(231, 74%, 46%)
CMYK	cmyk(73.5%, 62.4%, 0%, 54.1%)
CIE-LAB	lab(21.49, 21.60, -43.54)
CIE-LCH	lch(21.49, 48.60, 296.38°)
OKLab	oklab(33.16% 0.0007 -0.1256)
OKLCH	oklch(33.16% 0.126 270.3)
XYZ	xyz(4.6755, 3.3766, 17.2315)
Luminance	0.0338 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C75 #75681F

analogous

#1F5775 #1F2C75 #3D1F75

triadic

#1F2C75 #751F2C #2C751F

tetradic

#1F2C75 #751F57 #75681F #1F753D

square

#1F2C75 #751F57 #75681F #1F753D

split-complementary

#1F2C75 #753D1F #57751F

monochromatic

#060918 #121A45 #1F2C75 #2C3EA5 #4257CD

Accessibility & contrast

On white

12.53

#1F2C75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1F2C75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C75

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C75	#FFFFFF	#000000	##FFFFFF
##1F2C75	1.00	12.53	1.68	12.53
#FFFFFF	12.53	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003877

Deuteranopia (green-blind)

#003074

Tritanopia (blue-blind)

#003E4C

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2c75;
/* rgb */ color: rgb(31, 44, 117);
/* oklch */ color: oklch(33.2% 0.126 270.3);

Tailwind

colors: {
  custom: {
    50: '#68659d',
    500: '#1f2c75',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c75;
$custom-light: #68659d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c75",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 117
  },
  "hsl": {
    "h": 230.93,
    "s": 58.108,
    "l": 29.02
  },
  "oklch": {
    "l": 0.33161,
    "c": 0.12559,
    "h": 270.3
  },
  "luminance": 0.03377
}

Semantic roles & 50–950 ramp

primary

#1F2C75

secondary

#A99A47

accent

#CA46E1

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07050E

muted

#7A7A7E

Preview Lab

Preview with #1F2C75

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

Preview Lab → · Contrast checker → · Palette generator →