#1B336C#1B336C

#1B336C is a dark, moderate blue. Relative luminance 0.037; OKLCH L 33.7% C 0.104 H 264.3°. Best body text is #FFFFFF at 12.09:1 contrast (WCAG AA passes).

Color values

HEX	#1B336C
RGB	rgb(27, 51, 108)
HSL	hsl(222, 60%, 26%)
HSV	hsv(222, 75%, 42%)
CMYK	cmyk(75%, 52.8%, 0%, 57.6%)
CIE-LAB	lab(22.59, 12.38, -35.98)
CIE-LCH	lch(22.59, 38.05, 288.99°)
OKLab	oklab(33.7% -0.0102 -0.1033)
OKLCH	oklch(33.7% 0.104 264.3)
XYZ	xyz(4.3416, 3.6829, 14.6665)
Luminance	0.0368 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B336C #6C541B

analogous

#1B5C6C #1B336C #2C1B6C

triadic

#1B336C #6C1B33 #336C1B

tetradic

#1B336C #6C1B5C #6C541B #1B6C2C

square

#1B336C #6C1B5C #6C541B #1B6C2C

split-complementary

#1B336C #6C2C1B #5C6C1B

monochromatic

#060C18 #0F1C3B #1B336C #274A9D #3562CC

Accessibility & contrast

On white

12.09

#1B336C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1B336C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B336C

12.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B336C	#FFFFFF	#000000	##FFFFFF
##1B336C	1.00	12.09	1.74	12.09
#FFFFFF	12.09	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#113A6E

Deuteranopia (green-blind)

#00326B

Tritanopia (blue-blind)

#00414A

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b336c;
/* rgb */ color: rgb(27, 51, 108);
/* oklch */ color: oklch(33.7% 0.104 264.3);

Tailwind

colors: {
  custom: {
    50: '#636a96',
    500: '#1b336c',
    950: '#000000',
  },
}

SCSS

$custom: #1b336c;
$custom-light: #636a96;
$custom-dark: #000000;

JSON

{
  "hex": "#1b336c",
  "rgb": {
    "r": 27,
    "g": 51,
    "b": 108
  },
  "hsl": {
    "h": 222.222,
    "s": 60,
    "l": 26.471
  },
  "oklch": {
    "l": 0.33704,
    "c": 0.10385,
    "h": 264.3
  },
  "luminance": 0.03683
}

Semantic roles & 50–950 ramp

primary

#1B336C

secondary

#A18542

accent

#B445E3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1B336C

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

Preview Lab → · Contrast checker → · Palette generator →