#1B396C#1B396C

#1B396C is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.1% C 0.096 H 260.3°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#1B396C
RGB	rgb(27, 57, 108)
HSL	hsl(218, 60%, 26%)
HSV	hsv(218, 75%, 42%)
CMYK	cmyk(75%, 47.2%, 0%, 57.6%)
CIE-LAB	lab(24.45, 8.12, -32.99)
CIE-LCH	lch(24.45, 33.97, 283.82°)
OKLab	oklab(35.13% -0.0161 -0.0944)
OKLCH	oklch(35.13% 0.096 260.3)
XYZ	xyz(4.6209, 4.2415, 14.7596)
Luminance	0.0424 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B396C #6C4E1B

analogous

#1B626C #1B396C #261B6C

triadic

#1B396C #6C1B39 #396C1B

tetradic

#1B396C #6C1B62 #6C4E1B #1B6C26

square

#1B396C #6C1B62 #6C4E1B #1B6C26

split-complementary

#1B396C #6C261B #626C1B

monochromatic

#060D18 #0F1F3B #1B396C #27539D #356DCC

Accessibility & contrast

On white

11.36

#1B396C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1B396C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B396C

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B396C	#FFFFFF	#000000	##FFFFFF
##1B396C	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F3E6E

Deuteranopia (green-blind)

#10376B

Tritanopia (blue-blind)

#00454D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1b396c;
/* rgb */ color: rgb(27, 57, 108);
/* oklch */ color: oklch(35.1% 0.096 260.3);

Tailwind

colors: {
  custom: {
    50: '#636e96',
    500: '#1b396c',
    950: '#000000',
  },
}

SCSS

$custom: #1b396c;
$custom-light: #636e96;
$custom-dark: #000000;

JSON

{
  "hex": "#1b396c",
  "rgb": {
    "r": 27,
    "g": 57,
    "b": 108
  },
  "hsl": {
    "h": 217.778,
    "s": 60,
    "l": 26.471
  },
  "oklch": {
    "l": 0.35129,
    "c": 0.0958,
    "h": 260.3
  },
  "luminance": 0.04242
}

Semantic roles & 50–950 ramp

primary

#1B396C

secondary

#A17E42

accent

#A845E3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #1B396C

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

Preview Lab → · Contrast checker → · Palette generator →