#1F2B6E#1F2B6E

#1F2B6E is a dark, moderate blue. Relative luminance 0.031; OKLCH L 32.3% C 0.117 H 270.7°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#1F2B6E
RGB	rgb(31, 43, 110)
HSL	hsl(231, 56%, 28%)
HSV	hsv(231, 72%, 43%)
CMYK	cmyk(71.8%, 60.9%, 0%, 56.9%)
CIE-LAB	lab(20.61, 19.55, -40.47)
CIE-LCH	lch(20.61, 44.94, 295.78°)
OKLab	oklab(32.32% 0.0015 -0.1166)
OKLCH	oklch(32.32% 0.117 270.7)
XYZ	xyz(4.2425, 3.1444, 15.1322)
Luminance	0.0314 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2B6E #6E621F

analogous

#1F526E #1F2B6E #3A1F6E

triadic

#1F2B6E #6E1F2B #2B6E1F

tetradic

#1F2B6E #6E1F52 #6E621F #1F6E3A

square

#1F2B6E #6E1F52 #6E621F #1F6E3A

split-complementary

#1F2B6E #6E3A1F #526E1F

monochromatic

#070918 #12183E #1F2B6E #2C3E9E #3F54C9

Accessibility & contrast

On white

12.89

#1F2B6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#1F2B6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2B6E

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2B6E	#FFFFFF	#000000	##FFFFFF
##1F2B6E	1.00	12.89	1.63	12.89
#FFFFFF	12.89	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003570

Deuteranopia (green-blind)

#002E6D

Tritanopia (blue-blind)

#003B48

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1f2b6e;
/* rgb */ color: rgb(31, 43, 110);
/* oklch */ color: oklch(32.3% 0.117 270.7);

Tailwind

colors: {
  custom: {
    50: '#666498',
    500: '#1f2b6e',
    950: '#000000',
  },
}

SCSS

$custom: #1f2b6e;
$custom-light: #666498;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2b6e",
  "rgb": {
    "r": 31,
    "g": 43,
    "b": 110
  },
  "hsl": {
    "h": 230.886,
    "s": 56.028,
    "l": 27.647
  },
  "oklch": {
    "l": 0.32319,
    "c": 0.1166,
    "h": 270.7
  },
  "luminance": 0.03145
}

Semantic roles & 50–950 ramp

primary

#1F2B6E

secondary

#A29447

accent

#C848DF

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1F2B6E

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

Preview Lab → · Contrast checker → · Palette generator →