#1F2F6A#1F2F6A

#1F2F6A is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.8% C 0.105 H 268.6°. Best body text is #FFFFFF at 12.55:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F6A
RGB	rgb(31, 47, 106)
HSL	hsl(227, 55%, 27%)
HSV	hsv(227, 71%, 42%)
CMYK	cmyk(70.8%, 55.7%, 0%, 58.4%)
CIE-LAB	lab(21.45, 15.10, -36.53)
CIE-LCH	lch(21.45, 39.53, 292.47°)
OKLab	oklab(32.84% -0.0026 -0.1049)
OKLCH	oklch(32.84% 0.105 268.6)
XYZ	xyz(4.1822, 3.3645, 14.0619)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F6A #6A5A1F

analogous

#1F556A #1F2F6A #351F6A

triadic

#1F2F6A #6A1F2F #2F6A1F

tetradic

#1F2F6A #6A1F55 #6A5A1F #1F6A35

square

#1F2F6A #6A1F55 #6A5A1F #1F6A35

split-complementary

#1F2F6A #6A351F #556A1F

monochromatic

#070A18 #111A3B #1F2F6A #2D4499 #3D5AC6

Accessibility & contrast

On white

12.55

#1F2F6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1F2F6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F6A

12.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F6A	#FFFFFF	#000000	##FFFFFF
##1F2F6A	1.00	12.55	1.67	12.55
#FFFFFF	12.55	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#08376C

Deuteranopia (green-blind)

#003069

Tritanopia (blue-blind)

#003D47

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f2f6a;
/* rgb */ color: rgb(31, 47, 106);
/* oklch */ color: oklch(32.8% 0.105 268.6);

Tailwind

colors: {
  custom: {
    50: '#656795',
    500: '#1f2f6a',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f6a;
$custom-light: #656795;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f6a",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 106
  },
  "hsl": {
    "h": 227.2,
    "s": 54.745,
    "l": 26.863
  },
  "oklch": {
    "l": 0.32843,
    "c": 0.10496,
    "h": 268.6
  },
  "luminance": 0.03365
}

Semantic roles & 50–950 ramp

primary

#1F2F6A

secondary

#9E8C47

accent

#BE4ADE

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1F2F6A

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

Preview Lab → · Contrast checker → · Palette generator →