#1B396E#1B396E

#1B396E is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.3% C 0.099 H 260.8°. Best body text is #FFFFFF at 11.31:1 contrast (WCAG AA passes).

Color values

HEX	#1B396E
RGB	rgb(27, 57, 110)
HSL	hsl(218, 61%, 27%)
HSV	hsv(218, 75%, 43%)
CMYK	cmyk(75.5%, 48.2%, 0%, 56.9%)
CIE-LAB	lab(24.59, 8.93, -34.05)
CIE-LCH	lch(24.59, 35.21, 284.70°)
OKLab	oklab(35.28% -0.0157 -0.0976)
OKLCH	oklch(35.28% 0.099 260.8)
XYZ	xyz(4.7286, 4.2846, 15.3266)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B396E #6E501B

analogous

#1B636E #1B396E #261B6E

triadic

#1B396E #6E1B39 #396E1B

tetradic

#1B396E #6E1B63 #6E501B #1B6E26

square

#1B396E #6E1B63 #6E501B #1B6E26

split-complementary

#1B396E #6E261B #636E1B

monochromatic

#060D19 #0F203D #1B396E #27529F #366DCE

Accessibility & contrast

On white

11.31

#1B396E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1B396E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B396E

11.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B396E	#FFFFFF	#000000	##FFFFFF
##1B396E	1.00	11.31	1.86	11.31
#FFFFFF	11.31	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E3E70

Deuteranopia (green-blind)

#0C376D

Tritanopia (blue-blind)

#00454E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1b396e;
/* rgb */ color: rgb(27, 57, 110);
/* oklch */ color: oklch(35.3% 0.099 260.8);

Tailwind

colors: {
  custom: {
    50: '#636e98',
    500: '#1b396e',
    950: '#000000',
  },
}

SCSS

$custom: #1b396e;
$custom-light: #636e98;
$custom-dark: #000000;

JSON

{
  "hex": "#1b396e",
  "rgb": {
    "r": 27,
    "g": 57,
    "b": 110
  },
  "hsl": {
    "h": 218.313,
    "s": 60.584,
    "l": 26.863
  },
  "oklch": {
    "l": 0.35278,
    "c": 0.09882,
    "h": 260.8
  },
  "luminance": 0.04285
}

Semantic roles & 50–950 ramp

primary

#1B396E

secondary

#A38042

accent

#AA44E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #1B396E

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

Preview Lab → · Contrast checker → · Palette generator →