#1F2C7E#1F2C7E

#1F2C7E is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.0% C 0.139 H 270.2°. Best body text is #FFFFFF at 12.21:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C7E
RGB	rgb(31, 44, 126)
HSL	hsl(232, 61%, 31%)
HSV	hsv(232, 75%, 49%)
CMYK	cmyk(75.4%, 65.1%, 0%, 50.6%)
CIE-LAB	lab(22.30, 25.11, -47.95)
CIE-LCH	lch(22.30, 54.13, 297.64°)
OKLab	oklab(34.01% 0.0005 -0.1385)
OKLCH	oklch(34.01% 0.139 270.2)
XYZ	xyz(5.2304, 3.5985, 20.1535)
Luminance	0.0360 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C7E #7E711F

analogous

#1F5B7E #1F2C7E #411F7E

triadic

#1F2C7E #7E1F2C #2C7E1F

tetradic

#1F2C7E #7E1F5B #7E711F #1F7E41

square

#1F2C7E #7E1F5B #7E711F #1F7E41

split-complementary

#1F2C7E #7E411F #5B7E1F

monochromatic

#070A1C #131B4D #1F2C7E #2B3DAF #4659D1

Accessibility & contrast

On white

12.21

#1F2C7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1F2C7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C7E

12.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C7E	#FFFFFF	#000000	##FFFFFF
##1F2C7E	1.00	12.21	1.72	12.21
#FFFFFF	12.21	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A81

Deuteranopia (green-blind)

#00317C

Tritanopia (blue-blind)

#004150

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1f2c7e;
/* rgb */ color: rgb(31, 44, 126);
/* oklch */ color: oklch(34.0% 0.139 270.2);

Tailwind

colors: {
  custom: {
    50: '#6a65a4',
    500: '#1f2c7e',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c7e;
$custom-light: #6a65a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c7e",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 126
  },
  "hsl": {
    "h": 231.789,
    "s": 60.51,
    "l": 30.784
  },
  "oklch": {
    "l": 0.34006,
    "c": 0.13853,
    "h": 270.2
  },
  "luminance": 0.03599
}

Semantic roles & 50–950 ramp

primary

#1F2C7E

secondary

#B1A348

accent

#CE44E4

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1F2C7E

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

Preview Lab → · Contrast checker → · Palette generator →