#1B2B6E#1B2B6E

#1B2B6E is a dark, moderate blue. Relative luminance 0.031; OKLCH L 32.1% C 0.118 H 268.6°. Best body text is #FFFFFF at 12.98:1 contrast (WCAG AA passes).

Color values

HEX	#1B2B6E
RGB	rgb(27, 43, 110)
HSL	hsl(228, 61%, 27%)
HSV	hsv(228, 75%, 43%)
CMYK	cmyk(75.5%, 60.9%, 0%, 56.9%)
CIE-LAB	lab(20.39, 18.94, -40.85)
CIE-LCH	lch(20.39, 45.03, 294.87°)
OKLab	oklab(32.09% -0.0028 -0.1178)
OKLCH	oklch(32.09% 0.118 268.6)
XYZ	xyz(4.1294, 3.0861, 15.1269)
Luminance	0.0309 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2B6E #6E5E1B

analogous

#1B556E #1B2B6E #351B6E

triadic

#1B2B6E #6E1B2B #2B6E1B

tetradic

#1B2B6E #6E1B55 #6E5E1B #1B6E35

square

#1B2B6E #6E1B55 #6E5E1B #1B6E35

split-complementary

#1B2B6E #6E351B #556E1B

monochromatic

#060A19 #0F183D #1B2B6E #273E9F #3653CE

Accessibility & contrast

On white

12.98

#1B2B6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1B2B6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2B6E

12.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2B6E	#FFFFFF	#000000	##FFFFFF
##1B2B6E	1.00	12.98	1.62	12.98
#FFFFFF	12.98	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003570

Deuteranopia (green-blind)

#002D6D

Tritanopia (blue-blind)

#003C48

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1b2b6e;
/* rgb */ color: rgb(27, 43, 110);
/* oklch */ color: oklch(32.1% 0.118 268.6);

Tailwind

colors: {
  custom: {
    50: '#646498',
    500: '#1b2b6e',
    950: '#000000',
  },
}

SCSS

$custom: #1b2b6e;
$custom-light: #646498;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2b6e",
  "rgb": {
    "r": 27,
    "g": 43,
    "b": 110
  },
  "hsl": {
    "h": 228.434,
    "s": 60.584,
    "l": 26.863
  },
  "oklch": {
    "l": 0.32087,
    "c": 0.11783,
    "h": 268.6
  },
  "luminance": 0.03087
}

Semantic roles & 50–950 ramp

primary

#1B2B6E

secondary

#A39042

accent

#C544E4

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1B2B6E

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

Preview Lab → · Contrast checker → · Palette generator →