#1B4E6F#1B4E6F

#1B4E6F is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.6% C 0.077 H 241.0°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E6F
RGB	rgb(27, 78, 111)
HSL	hsl(204, 61%, 27%)
HSV	hsv(204, 76%, 44%)
CMYK	cmyk(75.7%, 29.7%, 0%, 56.5%)
CIE-LAB	lab(31.41, -4.79, -23.87)
CIE-LCH	lch(31.41, 24.35, 258.65°)
OKLab	oklab(40.63% -0.0374 -0.0674)
OKLCH	oklch(40.63% 0.077 241)
XYZ	xyz(6.0445, 6.8288, 16.0354)
Luminance	0.0683 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E6F #6F3C1B

analogous

#1B6F66 #1B4E6F #1B246F

triadic

#1B4E6F #6F1B4E #4E6F1B

tetradic

#1B4E6F #661B6F #6F3C1B #246F1B

square

#1B4E6F #661B6F #6F3C1B #246F1B

split-complementary

#1B4E6F #6F1B24 #6F661B

monochromatic

#061119 #0F2B3E #1B4E6F #2771A0 #3692CE

Accessibility & contrast

On white

8.88

#1B4E6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1B4E6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E6F

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E6F	#FFFFFF	#000000	##FFFFFF
##1B4E6F	1.00	8.88	2.37	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F4E70

Deuteranopia (green-blind)

#33466E

Tritanopia (blue-blind)

#005659

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b4e6f;
/* rgb */ color: rgb(27, 78, 111);
/* oklch */ color: oklch(40.6% 0.077 241.0);

Tailwind

colors: {
  custom: {
    50: '#647f98',
    500: '#1b4e6f',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e6f;
$custom-light: #647f98;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e6f",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 111
  },
  "hsl": {
    "h": 203.571,
    "s": 60.87,
    "l": 27.059
  },
  "oklch": {
    "l": 0.40632,
    "c": 0.07711,
    "h": 241
  },
  "luminance": 0.06829
}

Semantic roles & 50–950 ramp

primary

#1B4E6F

secondary

#A46842

accent

#8344E4

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #1B4E6F

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

Preview Lab → · Contrast checker → · Palette generator →