#1B368E#1B368E

#1B368E is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.3% C 0.149 H 266.0°. Best body text is #FFFFFF at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#1B368E
RGB	rgb(27, 54, 142)
HSL	hsl(226, 68%, 33%)
HSV	hsv(226, 81%, 56%)
CMYK	cmyk(81%, 62%, 0%, 44.3%)
CIE-LAB	lab(26.23, 24.04, -51.54)
CIE-LCH	lch(26.23, 56.87, 295.01°)
OKLab	oklab(37.31% -0.0103 -0.149)
OKLCH	oklch(37.31% 0.149 266)
XYZ	xyz(6.6519, 4.8236, 26.1664)
Luminance	0.0482 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B368E #8E731B

analogous

#1B6F8E #1B368E #391B8E

triadic

#1B368E #8E1B36 #368E1B

tetradic

#1B368E #8E1B6F #8E731B #1B8E39

square

#1B368E #8E1B6F #8E731B #1B8E39

split-complementary

#1B368E #8E391B #6F8E1B

monochromatic

#070F27 #11225B #1B368E #254AC1 #476ADC

Accessibility & contrast

On white

10.69

#1B368E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#1B368E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B368E

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B368E	#FFFFFF	#000000	##FFFFFF
##1B368E	1.00	10.69	1.96	10.69
#FFFFFF	10.69	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004491

Deuteranopia (green-blind)

#00398C

Tritanopia (blue-blind)

#004D5C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1b368e;
/* rgb */ color: rgb(27, 54, 142);
/* oklch */ color: oklch(37.3% 0.149 266.0);

Tailwind

colors: {
  custom: {
    50: '#6c6cb0',
    500: '#1b368e',
    950: '#000000',
  },
}

SCSS

$custom: #1b368e;
$custom-light: #6c6cb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b368e",
  "rgb": {
    "r": 27,
    "g": 54,
    "b": 142
  },
  "hsl": {
    "h": 225.913,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.37308,
    "c": 0.14938,
    "h": 266
  },
  "luminance": 0.04824
}

Semantic roles & 50–950 ramp

primary

#1B368E

secondary

#BEA247

accent

#C23DEB

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1B368E

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

Preview Lab → · Contrast checker → · Palette generator →