#1B2B6F#1B2B6F

#1B2B6F is a dark, moderate blue. Relative luminance 0.031; OKLCH L 32.2% C 0.119 H 268.6°. Best body text is #FFFFFF at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#1B2B6F
RGB	rgb(27, 43, 111)
HSL	hsl(229, 61%, 27%)
HSV	hsv(229, 76%, 44%)
CMYK	cmyk(75.7%, 61.3%, 0%, 56.5%)
CIE-LAB	lab(20.47, 19.34, -41.36)
CIE-LCH	lch(20.47, 45.66, 295.06°)
OKLab	oklab(32.18% -0.0028 -0.1193)
OKLCH	oklch(32.18% 0.119 268.6)
XYZ	xyz(4.1841, 3.1080, 15.4152)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2B6F #6F5F1B

analogous

#1B556F #1B2B6F #351B6F

triadic

#1B2B6F #6F1B2B #2B6F1B

tetradic

#1B2B6F #6F1B55 #6F5F1B #1B6F35

square

#1B2B6F #6F1B55 #6F5F1B #1B6F35

split-complementary

#1B2B6F #6F351B #556F1B

monochromatic

#060A19 #0F183E #1B2B6F #273EA0 #3653CE

Accessibility & contrast

On white

12.95

#1B2B6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1B2B6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2B6F

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2B6F	#FFFFFF	#000000	##FFFFFF
##1B2B6F	1.00	12.95	1.62	12.95
#FFFFFF	12.95	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003571

Deuteranopia (green-blind)

#002E6E

Tritanopia (blue-blind)

#003C48

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1b2b6f;
/* rgb */ color: rgb(27, 43, 111);
/* oklch */ color: oklch(32.2% 0.119 268.6);

Tailwind

colors: {
  custom: {
    50: '#656499',
    500: '#1b2b6f',
    950: '#000000',
  },
}

SCSS

$custom: #1b2b6f;
$custom-light: #656499;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2b6f",
  "rgb": {
    "r": 27,
    "g": 43,
    "b": 111
  },
  "hsl": {
    "h": 228.571,
    "s": 60.87,
    "l": 27.059
  },
  "oklch": {
    "l": 0.32178,
    "c": 0.11932,
    "h": 268.6
  },
  "luminance": 0.03108
}

Semantic roles & 50–950 ramp

primary

#1B2B6F

secondary

#A49142

accent

#C544E4

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1B2B6F

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

Preview Lab → · Contrast checker → · Palette generator →