#1D396B#1D396B

#1D396B is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.1% C 0.094 H 261.0°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#1D396B
RGB	rgb(29, 57, 107)
HSL	hsl(218, 57%, 27%)
HSV	hsv(218, 73%, 42%)
CMYK	cmyk(72.9%, 46.7%, 0%, 58%)
CIE-LAB	lab(24.48, 8.04, -32.31)
CIE-LCH	lch(24.48, 33.29, 283.98°)
OKLab	oklab(35.15% -0.0146 -0.0924)
OKLCH	oklch(35.15% 0.094 261)
XYZ	xyz(4.6227, 4.2485, 14.4835)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D396B #6B4F1D

analogous

#1D606B #1D396B #281D6B

triadic

#1D396B #6B1D39 #396B1D

tetradic

#1D396B #6B1D60 #6B4F1D #1D6B28

square

#1D396B #6B1D60 #6B4F1D #1D6B28

split-complementary

#1D396B #6B281D #606B1D

monochromatic

#070D18 #101F3B #1D396B #2A539B #396DC9

Accessibility & contrast

On white

11.35

#1D396B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1D396B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D396B

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D396B	#FFFFFF	#000000	##FFFFFF
##1D396B	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#203E6D

Deuteranopia (green-blind)

#12376A

Tritanopia (blue-blind)

#00454C

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1d396b;
/* rgb */ color: rgb(29, 57, 107);
/* oklch */ color: oklch(35.1% 0.094 261.0);

Tailwind

colors: {
  custom: {
    50: '#636e96',
    500: '#1d396b',
    950: '#000000',
  },
}

SCSS

$custom: #1d396b;
$custom-light: #636e96;
$custom-dark: #000000;

JSON

{
  "hex": "#1d396b",
  "rgb": {
    "r": 29,
    "g": 57,
    "b": 107
  },
  "hsl": {
    "h": 218.462,
    "s": 57.353,
    "l": 26.667
  },
  "oklch": {
    "l": 0.3515,
    "c": 0.09354,
    "h": 261
  },
  "luminance": 0.04249
}

Semantic roles & 50–950 ramp

primary

#1D396B

secondary

#A07F44

accent

#AA47E1

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #1D396B

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

Preview Lab → · Contrast checker → · Palette generator →