#1F2E71#1F2E71

#1F2E71 is a dark, moderate blue. Relative luminance 0.034; OKLCH L 33.2% C 0.117 H 269.4°. Best body text is #FFFFFF at 12.44:1 contrast (WCAG AA passes).

Color values

HEX	#1F2E71
RGB	rgb(31, 46, 113)
HSL	hsl(229, 57%, 28%)
HSV	hsv(229, 73%, 44%)
CMYK	cmyk(72.6%, 59.3%, 0%, 55.7%)
CIE-LAB	lab(21.72, 18.60, -40.61)
CIE-LCH	lch(21.72, 44.67, 294.61°)
OKLab	oklab(33.22% -0.0012 -0.117)
OKLCH	oklch(33.22% 0.117 269.4)
XYZ	xyz(4.5217, 3.4371, 16.0447)
Luminance	0.0344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2E71 #71621F

analogous

#1F5771 #1F2E71 #391F71

triadic

#1F2E71 #711F2E #2E711F

tetradic

#1F2E71 #711F57 #71621F #1F7139

square

#1F2E71 #711F57 #71621F #1F7139

split-complementary

#1F2E71 #71391F #57711F

monochromatic

#070A18 #121A41 #1F2E71 #2C42A1 #4059CB

Accessibility & contrast

On white

12.44

#1F2E71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1F2E71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2E71

12.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2E71	#FFFFFF	#000000	##FFFFFF
##1F2E71	1.00	12.44	1.69	12.44
#FFFFFF	12.44	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003873

Deuteranopia (green-blind)

#003070

Tritanopia (blue-blind)

#003E4A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2e71;
/* rgb */ color: rgb(31, 46, 113);
/* oklch */ color: oklch(33.2% 0.117 269.4);

Tailwind

colors: {
  custom: {
    50: '#66669a',
    500: '#1f2e71',
    950: '#000000',
  },
}

SCSS

$custom: #1f2e71;
$custom-light: #66669a;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2e71",
  "rgb": {
    "r": 31,
    "g": 46,
    "b": 113
  },
  "hsl": {
    "h": 229.024,
    "s": 56.944,
    "l": 28.235
  },
  "oklch": {
    "l": 0.33221,
    "c": 0.11697,
    "h": 269.4
  },
  "luminance": 0.03438
}

Semantic roles & 50–950 ramp

primary

#1F2E71

secondary

#A59447

accent

#C448E0

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #1F2E71

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

Preview Lab → · Contrast checker → · Palette generator →