#1B4F69#1B4F69

#1B4F69 is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.6% C 0.070 H 234.1°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#1B4F69
RGB	rgb(27, 79, 105)
HSL	hsl(200, 59%, 26%)
HSV	hsv(200, 74%, 41%)
CMYK	cmyk(74.3%, 24.8%, 0%, 58.8%)
CIE-LAB	lab(31.45, -7.71, -20.03)
CIE-LCH	lch(31.45, 21.47, 248.95°)
OKLab	oklab(40.56% -0.0408 -0.0563)
OKLCH	oklch(40.56% 0.07 234.1)
XYZ	xyz(5.7968, 6.8442, 14.3774)
Luminance	0.0684 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4F69 #69351B

analogous

#1B695C #1B4F69 #1B2869

triadic

#1B4F69 #691B4F #4F691B

tetradic

#1B4F69 #5C1B69 #69351B #28691B

square

#1B4F69 #5C1B69 #69351B #28691B

split-complementary

#1B4F69 #691B28 #695C1B

monochromatic

#061218 #0E2A38 #1B4F69 #28749A #3498CA

Accessibility & contrast

On white

8.86

#1B4F69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1B4F69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4F69

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4F69	#FFFFFF	#000000	##FFFFFF
##1B4F69	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#424E6A

Deuteranopia (green-blind)

#384769

Tritanopia (blue-blind)

#005658

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b4f69;
/* rgb */ color: rgb(27, 79, 105);
/* oklch */ color: oklch(40.6% 0.070 234.1);

Tailwind

colors: {
  custom: {
    50: '#638094',
    500: '#1b4f69',
    950: '#000000',
  },
}

SCSS

$custom: #1b4f69;
$custom-light: #638094;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4f69",
  "rgb": {
    "r": 27,
    "g": 79,
    "b": 105
  },
  "hsl": {
    "h": 200,
    "s": 59.091,
    "l": 25.882
  },
  "oklch": {
    "l": 0.40563,
    "c": 0.06952,
    "h": 234.1
  },
  "luminance": 0.06845
}

Semantic roles & 50–950 ramp

primary

#1B4F69

secondary

#9E6042

accent

#7A46E2

background

#F6F7F9

surface

#EBEEF1

border

#C6C9CB

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #1B4F69

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

Preview Lab → · Contrast checker → · Palette generator →