#1B4E66#1B4E66

#1B4E66 is a dark, moderate cyan. Relative luminance 0.066; OKLCH L 40.1% C 0.067 H 232.4°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E66
RGB	rgb(27, 78, 102)
HSL	hsl(199, 58%, 25%)
HSV	hsv(199, 74%, 40%)
CMYK	cmyk(73.5%, 23.5%, 0%, 60%)
CIE-LAB	lab(30.97, -8.22, -18.88)
CIE-LCH	lch(30.97, 20.59, 246.47°)
OKLab	oklab(40.14% -0.0408 -0.053)
OKLCH	oklch(40.14% 0.067 232.4)
XYZ	xyz(5.5737, 6.6405, 13.5558)
Luminance	0.0664 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E66 #66331B

analogous

#1B6658 #1B4E66 #1B2866

triadic

#1B4E66 #661B4E #4E661B

tetradic

#1B4E66 #581B66 #66331B #28661B

square

#1B4E66 #581B66 #66331B #28661B

split-complementary

#1B4E66 #661B28 #66581B

monochromatic

#061318 #0E2936 #1B4E66 #287396 #3598C7

Accessibility & contrast

On white

9.02

#1B4E66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#1B4E66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E66

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E66	#FFFFFF	#000000	##FFFFFF
##1B4E66	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#424D67

Deuteranopia (green-blind)

#384666

Tritanopia (blue-blind)

#005456

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1b4e66;
/* rgb */ color: rgb(27, 78, 102);
/* oklch */ color: oklch(40.1% 0.067 232.4);

Tailwind

colors: {
  custom: {
    50: '#627f91',
    500: '#1b4e66',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e66;
$custom-light: #627f91;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e66",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 102
  },
  "hsl": {
    "h": 199.2,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.40137,
    "c": 0.06688,
    "h": 232.4
  },
  "luminance": 0.06641
}

Semantic roles & 50–950 ramp

primary

#1B4E66

secondary

#9B5E41

accent

#7846E1

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#060A0D

muted

#7A7C7D

Preview Lab

Preview with #1B4E66

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

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