#1B3E5E#1B3E5E

#1B3E5E is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.4% C 0.069 H 248.5°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#1B3E5E
RGB	rgb(27, 62, 94)
HSL	hsl(209, 55%, 24%)
HSV	hsv(209, 71%, 37%)
CMYK	cmyk(71.3%, 34%, 0%, 63.1%)
CIE-LAB	lab(25.22, -0.97, -22.74)
CIE-LCH	lch(25.22, 22.76, 267.55°)
OKLab	oklab(35.45% -0.0253 -0.0643)
OKLCH	oklch(35.45% 0.069 248.5)
XYZ	xyz(4.1942, 4.4860, 11.2323)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3E5E #5E3B1B

analogous

#1B5E5C #1B3E5E #1B1C5E

triadic

#1B3E5E #5E1B3E #3E5E1B

tetradic

#1B3E5E #5C1B5E #5E3B1B #1C5E1B

square

#1B3E5E #5C1B5E #5E3B1B #1C5E1B

split-complementary

#1B3E5E #5E1B1C #5E5C1B

monochromatic

#071018 #0D1F2E #1B3E5E #295D8E #367DBD

Accessibility & contrast

On white

11.07

#1B3E5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1B3E5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3E5E

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3E5E	#FFFFFF	#000000	##FFFFFF
##1B3E5E	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303F5F

Deuteranopia (green-blind)

#27395D

Tritanopia (blue-blind)

#004649

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1b3e5e;
/* rgb */ color: rgb(27, 62, 94);
/* oklch */ color: oklch(35.4% 0.069 248.5);

Tailwind

colors: {
  custom: {
    50: '#60738c',
    500: '#1b3e5e',
    950: '#000000',
  },
}

SCSS

$custom: #1b3e5e;
$custom-light: #60738c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3e5e",
  "rgb": {
    "r": 27,
    "g": 62,
    "b": 94
  },
  "hsl": {
    "h": 208.657,
    "s": 55.372,
    "l": 23.725
  },
  "oklch": {
    "l": 0.35445,
    "c": 0.06912,
    "h": 248.5
  },
  "luminance": 0.04486
}

Semantic roles & 50–950 ramp

primary

#1B3E5E

secondary

#946941

accent

#9149DF

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #1B3E5E

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

Preview Lab → · Contrast checker → · Palette generator →