#1B4D72#1B4D72

#1B4D72 is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.5% C 0.082 H 244.4°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#1B4D72
RGB	rgb(27, 77, 114)
HSL	hsl(206, 62%, 28%)
HSV	hsv(206, 76%, 45%)
CMYK	cmyk(76.3%, 32.5%, 0%, 55.3%)
CIE-LAB	lab(31.24, -2.99, -26.02)
CIE-LCH	lch(31.24, 26.19, 263.45°)
OKLab	oklab(40.55% -0.0353 -0.0737)
OKLCH	oklch(40.55% 0.082 244.4)
XYZ	xyz(6.1420, 6.7550, 16.8965)
Luminance	0.0676 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4D72 #72401B

analogous

#1B726B #1B4D72 #1B2272

triadic

#1B4D72 #721B4D #4D721B

tetradic

#1B4D72 #6B1B72 #72401B #22721B

square

#1B4D72 #6B1B72 #72401B #22721B

split-complementary

#1B4D72 #721B22 #726B1B

monochromatic

#061119 #0F2C41 #1B4D72 #276EA3 #388FD0

Accessibility & contrast

On white

8.93

#1B4D72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#1B4D72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4D72

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4D72	#FFFFFF	#000000	##FFFFFF
##1B4D72	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C4E74

Deuteranopia (green-blind)

#304671

Tritanopia (blue-blind)

#00565A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b4d72;
/* rgb */ color: rgb(27, 77, 114);
/* oklch */ color: oklch(40.5% 0.082 244.4);

Tailwind

colors: {
  custom: {
    50: '#647e9a',
    500: '#1b4d72',
    950: '#000000',
  },
}

SCSS

$custom: #1b4d72;
$custom-light: #647e9a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4d72",
  "rgb": {
    "r": 27,
    "g": 77,
    "b": 114
  },
  "hsl": {
    "h": 205.517,
    "s": 61.702,
    "l": 27.647
  },
  "oklch": {
    "l": 0.40548,
    "c": 0.08172,
    "h": 244.4
  },
  "luminance": 0.06756
}

Semantic roles & 50–950 ramp

primary

#1B4D72

secondary

#A76D42

accent

#8843E5

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1B4D72

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

Preview Lab → · Contrast checker → · Palette generator →