#1F2C7A#1F2C7A

#1F2C7A is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.6% C 0.133 H 270.3°. Best body text is #FFFFFF at 12.36:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C7A
RGB	rgb(31, 44, 122)
HSL	hsl(231, 59%, 30%)
HSV	hsv(231, 75%, 48%)
CMYK	cmyk(74.6%, 63.9%, 0%, 52.2%)
CIE-LAB	lab(21.93, 23.55, -46.01)
CIE-LCH	lch(21.93, 51.68, 297.11°)
OKLab	oklab(33.63% 0.0006 -0.1328)
OKLCH	oklch(33.63% 0.133 270.3)
XYZ	xyz(4.9774, 3.4973, 18.8213)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C7A #7A6D1F

analogous

#1F597A #1F2C7A #401F7A

triadic

#1F2C7A #7A1F2C #2C7A1F

tetradic

#1F2C7A #7A1F59 #7A6D1F #1F7A40

square

#1F2C7A #7A1F59 #7A6D1F #1F7A40

split-complementary

#1F2C7A #7A401F #597A1F

monochromatic

#060918 #131A49 #1F2C7A #2B3EAB #4458CF

Accessibility & contrast

On white

12.36

#1F2C7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1F2C7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C7A

12.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C7A	#FFFFFF	#000000	##FFFFFF
##1F2C7A	1.00	12.36	1.70	12.36
#FFFFFF	12.36	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00397D

Deuteranopia (green-blind)

#003078

Tritanopia (blue-blind)

#00404E

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1f2c7a;
/* rgb */ color: rgb(31, 44, 122);
/* oklch */ color: oklch(33.6% 0.133 270.3);

Tailwind

colors: {
  custom: {
    50: '#6965a1',
    500: '#1f2c7a',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c7a;
$custom-light: #6965a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c7a",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 122
  },
  "hsl": {
    "h": 231.429,
    "s": 59.477,
    "l": 30
  },
  "oklch": {
    "l": 0.33626,
    "c": 0.13283,
    "h": 270.3
  },
  "luminance": 0.03498
}

Semantic roles & 50–950 ramp

primary

#1F2C7A

secondary

#AD9F47

accent

#CC45E3

background

#F6F6FA

surface

#ECEBF3

border

#C7C6CD

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1F2C7A

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

Preview Lab → · Contrast checker → · Palette generator →