#1B2F6F#1B2F6F

#1B2F6F is a dark, moderate blue. Relative luminance 0.034; OKLCH L 33.0% C 0.114 H 266.9°. Best body text is #FFFFFF at 12.48:1 contrast (WCAG AA passes).

Color values

HEX	#1B2F6F
RGB	rgb(27, 47, 111)
HSL	hsl(226, 61%, 27%)
HSV	hsv(226, 76%, 44%)
CMYK	cmyk(75.7%, 57.7%, 0%, 56.5%)
CIE-LAB	lab(21.63, 16.48, -39.48)
CIE-LCH	lch(21.63, 42.78, 292.65°)
OKLab	oklab(33.05% -0.0062 -0.1137)
OKLCH	oklch(33.05% 0.114 266.9)
XYZ	xyz(4.3368, 3.4133, 15.4661)
Luminance	0.0341 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2F6F #6F5B1B

analogous

#1B596F #1B2F6F #311B6F

triadic

#1B2F6F #6F1B2F #2F6F1B

tetradic

#1B2F6F #6F1B59 #6F5B1B #1B6F31

square

#1B2F6F #6F1B59 #6F5B1B #1B6F31

split-complementary

#1B2F6F #6F311B #596F1B

monochromatic

#060A19 #0F1A3E #1B2F6F #2744A0 #365ACE

Accessibility & contrast

On white

12.48

#1B2F6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1B2F6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2F6F

12.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2F6F	#FFFFFF	#000000	##FFFFFF
##1B2F6F	1.00	12.48	1.68	12.48
#FFFFFF	12.48	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003871

Deuteranopia (green-blind)

#00306E

Tritanopia (blue-blind)

#003F4A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b2f6f;
/* rgb */ color: rgb(27, 47, 111);
/* oklch */ color: oklch(33.0% 0.114 266.9);

Tailwind

colors: {
  custom: {
    50: '#646799',
    500: '#1b2f6f',
    950: '#000000',
  },
}

SCSS

$custom: #1b2f6f;
$custom-light: #646799;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2f6f",
  "rgb": {
    "r": 27,
    "g": 47,
    "b": 111
  },
  "hsl": {
    "h": 225.714,
    "s": 60.87,
    "l": 27.059
  },
  "oklch": {
    "l": 0.33046,
    "c": 0.11387,
    "h": 266.9
  },
  "luminance": 0.03414
}

Semantic roles & 50–950 ramp

primary

#1B2F6F

secondary

#A48D42

accent

#BE44E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1B2F6F

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

Preview Lab → · Contrast checker → · Palette generator →