#1B396D#1B396D

#1B396D is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.2% C 0.097 H 260.6°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#1B396D
RGB	rgb(27, 57, 109)
HSL	hsl(218, 60%, 27%)
HSV	hsv(218, 75%, 43%)
CMYK	cmyk(75.2%, 47.7%, 0%, 57.3%)
CIE-LAB	lab(24.52, 8.52, -33.52)
CIE-LCH	lch(24.52, 34.59, 284.27°)
OKLab	oklab(35.2% -0.0159 -0.096)
OKLCH	oklch(35.2% 0.097 260.6)
XYZ	xyz(4.6744, 4.2629, 15.0415)
Luminance	0.0426 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B396D #6D4F1B

analogous

#1B626D #1B396D #261B6D

triadic

#1B396D #6D1B39 #396D1B

tetradic

#1B396D #6D1B62 #6D4F1B #1B6D26

square

#1B396D #6D1B62 #6D4F1B #1B6D26

split-complementary

#1B396D #6D261B #626D1B

monochromatic

#060D19 #0F1F3C #1B396D #27539E #356DCD

Accessibility & contrast

On white

11.34

#1B396D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1B396D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B396D

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B396D	#FFFFFF	#000000	##FFFFFF
##1B396D	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F3E6F

Deuteranopia (green-blind)

#0E376C

Tritanopia (blue-blind)

#00454D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1b396d;
/* rgb */ color: rgb(27, 57, 109);
/* oklch */ color: oklch(35.2% 0.097 260.6);

Tailwind

colors: {
  custom: {
    50: '#636e97',
    500: '#1b396d',
    950: '#000000',
  },
}

SCSS

$custom: #1b396d;
$custom-light: #636e97;
$custom-dark: #000000;

JSON

{
  "hex": "#1b396d",
  "rgb": {
    "r": 27,
    "g": 57,
    "b": 109
  },
  "hsl": {
    "h": 218.049,
    "s": 60.294,
    "l": 26.667
  },
  "oklch": {
    "l": 0.35204,
    "c": 0.09731,
    "h": 260.6
  },
  "luminance": 0.04263
}

Semantic roles & 50–950 ramp

primary

#1B396D

secondary

#A27F42

accent

#A944E3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #1B396D

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

Preview Lab → · Contrast checker → · Palette generator →