#1B4466#1B4466

#1B4466 is a dark, moderate cyan. Relative luminance 0.053; OKLCH L 37.5% C 0.074 H 246.6°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#1B4466
RGB	rgb(27, 68, 102)
HSL	hsl(207, 58%, 25%)
HSV	hsv(207, 74%, 40%)
CMYK	cmyk(73.5%, 33.3%, 0%, 60%)
CIE-LAB	lab(27.64, -1.82, -24.08)
CIE-LCH	lch(27.64, 24.15, 265.67°)
OKLab	oklab(37.5% -0.0295 -0.0681)
OKLCH	oklch(37.5% 0.074 246.6)
XYZ	xyz(4.9165, 5.3260, 13.3367)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4466 #663D1B

analogous

#1B6662 #1B4466 #1B1E66

triadic

#1B4466 #661B44 #44661B

tetradic

#1B4466 #621B66 #663D1B #1E661B

square

#1B4466 #621B66 #663D1B #1E661B

split-complementary

#1B4466 #661B1E #66621B

monochromatic

#061018 #0E2436 #1B4466 #286496 #3585C7

Accessibility & contrast

On white

10.17

#1B4466 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#1B4466 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4466

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4466	#FFFFFF	#000000	##FFFFFF
##1B4466	1.00	10.17	2.07	10.17
#FFFFFF	10.17	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#354567

Deuteranopia (green-blind)

#2A3E65

Tritanopia (blue-blind)

#004C50

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1b4466;
/* rgb */ color: rgb(27, 68, 102);
/* oklch */ color: oklch(37.5% 0.074 246.6);

Tailwind

colors: {
  custom: {
    50: '#627792',
    500: '#1b4466',
    950: '#000000',
  },
}

SCSS

$custom: #1b4466;
$custom-light: #627792;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4466",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 102
  },
  "hsl": {
    "h": 207.2,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.37498,
    "c": 0.07426,
    "h": 246.6
  },
  "luminance": 0.05327
}

Semantic roles & 50–950 ramp

primary

#1B4466

secondary

#9B6A41

accent

#8D46E1

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05080D

muted

#7A7B7D

Preview Lab

Preview with #1B4466

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

Preview Lab → · Contrast checker → · Palette generator →