#1B4568#1B4568

#1B4568 is a dark, moderate cyan. Relative luminance 0.055; OKLCH L 37.9% C 0.076 H 246.8°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#1B4568
RGB	rgb(27, 69, 104)
HSL	hsl(207, 59%, 26%)
HSV	hsv(207, 74%, 41%)
CMYK	cmyk(74%, 33.7%, 0%, 59.2%)
CIE-LAB	lab(28.08, -1.70, -24.67)
CIE-LCH	lch(28.08, 24.72, 266.07°)
OKLab	oklab(37.88% -0.03 -0.0698)
OKLCH	oklch(37.88% 0.076 246.8)
XYZ	xyz(5.0779, 5.4882, 13.8857)
Luminance	0.0549 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4568 #683E1B

analogous

#1B6864 #1B4568 #1B1E68

triadic

#1B4568 #681B45 #45681B

tetradic

#1B4568 #641B68 #683E1B #1E681B

square

#1B4568 #641B68 #683E1B #1E681B

split-complementary

#1B4568 #681B1E #68641B

monochromatic

#061018 #0E2537 #1B4568 #286599 #3485C9

Accessibility & contrast

On white

10.01

#1B4568 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1B4568 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4568

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4568	#FFFFFF	#000000	##FFFFFF
##1B4568	1.00	10.01	2.10	10.01
#FFFFFF	10.01	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#35466A

Deuteranopia (green-blind)

#2B3F67

Tritanopia (blue-blind)

#004D51

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1b4568;
/* rgb */ color: rgb(27, 69, 104);
/* oklch */ color: oklch(37.9% 0.076 246.8);

Tailwind

colors: {
  custom: {
    50: '#627893',
    500: '#1b4568',
    950: '#000000',
  },
}

SCSS

$custom: #1b4568;
$custom-light: #627893;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4568",
  "rgb": {
    "r": 27,
    "g": 69,
    "b": 104
  },
  "hsl": {
    "h": 207.273,
    "s": 58.779,
    "l": 25.686
  },
  "oklch": {
    "l": 0.37879,
    "c": 0.076,
    "h": 246.8
  },
  "luminance": 0.05489
}

Semantic roles & 50–950 ramp

primary

#1B4568

secondary

#9D6B42

accent

#8D46E2

background

#F6F7F9

surface

#EBEDF1

border

#C6C8CB

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #1B4568

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

Preview Lab → · Contrast checker → · Palette generator →