#1F2B7A#1F2B7A

#1F2B7A is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.4% C 0.134 H 270.6°. Best body text is #FFFFFF at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#1F2B7A
RGB	rgb(31, 43, 122)
HSL	hsl(232, 59%, 30%)
HSV	hsv(232, 75%, 48%)
CMYK	cmyk(74.6%, 64.8%, 0%, 52.2%)
CIE-LAB	lab(21.67, 24.25, -46.44)
CIE-LCH	lch(21.67, 52.39, 297.57°)
OKLab	oklab(33.43% 0.0014 -0.1341)
OKLCH	oklch(33.43% 0.134 270.6)
XYZ	xyz(4.9406, 3.4237, 18.8090)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2B7A #7A6E1F

analogous

#1F587A #1F2B7A #411F7A

triadic

#1F2B7A #7A1F2B #2B7A1F

tetradic

#1F2B7A #7A1F58 #7A6E1F #1F7A41

square

#1F2B7A #7A1F58 #7A6E1F #1F7A41

split-complementary

#1F2B7A #7A411F #587A1F

monochromatic

#060918 #131A49 #1F2B7A #2B3CAB #4456CF

Accessibility & contrast

On white

12.46

#1F2B7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1F2B7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2B7A

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2B7A	#FFFFFF	#000000	##FFFFFF
##1F2B7A	1.00	12.46	1.68	12.46
#FFFFFF	12.46	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00387D

Deuteranopia (green-blind)

#003078

Tritanopia (blue-blind)

#003F4E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2b7a;
/* rgb */ color: rgb(31, 43, 122);
/* oklch */ color: oklch(33.4% 0.134 270.6);

Tailwind

colors: {
  custom: {
    50: '#6964a1',
    500: '#1f2b7a',
    950: '#000000',
  },
}

SCSS

$custom: #1f2b7a;
$custom-light: #6964a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2b7a",
  "rgb": {
    "r": 31,
    "g": 43,
    "b": 122
  },
  "hsl": {
    "h": 232.088,
    "s": 59.477,
    "l": 30
  },
  "oklch": {
    "l": 0.33428,
    "c": 0.13414,
    "h": 270.6
  },
  "luminance": 0.03424
}

Semantic roles & 50–950 ramp

primary

#1F2B7A

secondary

#ADA047

accent

#CE45E3

background

#F6F5FA

surface

#ECEAF3

border

#C7C6CD

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1F2B7A

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

Preview Lab → · Contrast checker → · Palette generator →