#1F2272#1F2272

#1F2272 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.9% C 0.134 H 273.7°. Best body text is #FFFFFF at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#1F2272
RGB	rgb(31, 34, 114)
HSL	hsl(238, 57%, 28%)
HSV	hsv(238, 73%, 45%)
CMYK	cmyk(72.8%, 70.2%, 0%, 55.3%)
CIE-LAB	lab(18.58, 27.33, -46.37)
CIE-LCH	lch(18.58, 53.82, 300.51°)
OKLab	oklab(30.94% 0.0087 -0.134)
OKLCH	oklch(30.94% 0.134 273.7)
XYZ	xyz(4.1734, 2.6499, 16.2079)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2272 #726F1F

analogous

#1F4B72 #1F2272 #451F72

triadic

#1F2272 #721F22 #22721F

tetradic

#1F2272 #721F4B #726F1F #1F7245

square

#1F2272 #721F4B #726F1F #1F7245

split-complementary

#1F2272 #72451F #4B721F

monochromatic

#070718 #121442 #1F2272 #2C30A2 #4045CB

Accessibility & contrast

On white

13.73

#1F2272 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1F2272 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2272

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2272	#FFFFFF	#000000	##FFFFFF
##1F2272	1.00	13.73	1.53	13.73
#FFFFFF	13.73	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003174

Deuteranopia (green-blind)

#002970

Tritanopia (blue-blind)

#003747

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1f2272;
/* rgb */ color: rgb(31, 34, 114);
/* oklch */ color: oklch(30.9% 0.134 273.7);

Tailwind

colors: {
  custom: {
    50: '#685d9b',
    500: '#1f2272',
    950: '#000000',
  },
}

SCSS

$custom: #1f2272;
$custom-light: #685d9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2272",
  "rgb": {
    "r": 31,
    "g": 34,
    "b": 114
  },
  "hsl": {
    "h": 237.831,
    "s": 57.241,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30939,
    "c": 0.13425,
    "h": 273.7
  },
  "luminance": 0.0265
}

Semantic roles & 50–950 ramp

primary

#1F2272

secondary

#A6A247

accent

#DB47E0

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1F2272

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

Preview Lab → · Contrast checker → · Palette generator →