#1B4E77#1B4E77

#1B4E77 is a dark, moderate cyan. Relative luminance 0.070; OKLCH L 41.1% C 0.087 H 246.5°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E77
RGB	rgb(27, 78, 119)
HSL	hsl(207, 63%, 29%)
HSV	hsv(207, 77%, 47%)
CMYK	cmyk(77.3%, 34.5%, 0%, 53.3%)
CIE-LAB	lab(31.84, -1.67, -28.22)
CIE-LCH	lch(31.84, 28.27, 266.61°)
OKLab	oklab(41.1% -0.0347 -0.0801)
OKLCH	oklch(41.1% 0.087 246.5)
XYZ	xyz(6.5049, 7.0130, 18.4600)
Luminance	0.0701 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E77 #77441B

analogous

#1B7772 #1B4E77 #1B2077

triadic

#1B4E77 #771B4E #4E771B

tetradic

#1B4E77 #721B77 #77441B #20771B

square

#1B4E77 #721B77 #77441B #20771B

split-complementary

#1B4E77 #771B20 #77721B

monochromatic

#061019 #102D45 #1B4E77 #266FA9 #3A8ED2

Accessibility & contrast

On white

8.74

#1B4E77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#1B4E77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E77

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E77	#FFFFFF	#000000	##FFFFFF
##1B4E77	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B5079

Deuteranopia (green-blind)

#2E4776

Tritanopia (blue-blind)

#00585D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1b4e77;
/* rgb */ color: rgb(27, 78, 119);
/* oklch */ color: oklch(41.1% 0.087 246.5);

Tailwind

colors: {
  custom: {
    50: '#657f9e',
    500: '#1b4e77',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e77;
$custom-light: #657f9e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e77",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 119
  },
  "hsl": {
    "h": 206.739,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.41104,
    "c": 0.08729,
    "h": 246.5
  },
  "luminance": 0.07014
}

Semantic roles & 50–950 ramp

primary

#1B4E77

secondary

#AB7142

accent

#8B42E6

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1B4E77

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

Preview Lab → · Contrast checker → · Palette generator →