#1B385F#1B385F

#1B385F is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 34.0% C 0.077 H 256.5°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX	#1B385F
RGB	rgb(27, 56, 95)
HSL	hsl(214, 56%, 24%)
HSV	hsv(214, 72%, 37%)
CMYK	cmyk(71.6%, 41.1%, 0%, 62.7%)
CIE-LAB	lab(23.30, 3.54, -26.42)
CIE-LCH	lch(23.30, 26.66, 277.62°)
OKLab	oklab(33.96% -0.0181 -0.0752)
OKLCH	oklch(33.96% 0.077 256.5)
XYZ	xyz(3.9310, 3.8872, 11.3674)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B385F #5F421B

analogous

#1B5A5F #1B385F #201B5F

triadic

#1B385F #5F1B38 #385F1B

tetradic

#1B385F #5F1B5A #5F421B #1B5F20

square

#1B385F #5F1B5A #5F421B #1B5F20

split-complementary

#1B385F #5F201B #5A5F1B

monochromatic

#070E18 #0D1C2F #1B385F #29548F #3670BE

Accessibility & contrast

On white

11.81

#1B385F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1B385F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B385F

11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B385F	#FFFFFF	#000000	##FFFFFF
##1B385F	1.00	11.81	1.78	11.81
#FFFFFF	11.81	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273B61

Deuteranopia (green-blind)

#1D355E

Tritanopia (blue-blind)

#004147

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1b385f;
/* rgb */ color: rgb(27, 56, 95);
/* oklch */ color: oklch(34.0% 0.077 256.5);

Tailwind

colors: {
  custom: {
    50: '#606e8c',
    500: '#1b385f',
    950: '#000000',
  },
}

SCSS

$custom: #1b385f;
$custom-light: #606e8c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b385f",
  "rgb": {
    "r": 27,
    "g": 56,
    "b": 95
  },
  "hsl": {
    "h": 214.412,
    "s": 55.738,
    "l": 23.922
  },
  "oklch": {
    "l": 0.3396,
    "c": 0.07732,
    "h": 256.5
  },
  "luminance": 0.03888
}

Semantic roles & 50–950 ramp

primary

#1B385F

secondary

#957141

accent

#9F49DF

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #1B385F

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

Preview Lab → · Contrast checker → · Palette generator →