#1B4779#1B4779

#1B4779 is a dark, moderate cyan. Relative luminance 0.061; OKLCH L 39.5% C 0.098 H 253.9°. Best body text is #FFFFFF at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#1B4779
RGB	rgb(27, 71, 121)
HSL	hsl(212, 64%, 29%)
HSV	hsv(212, 78%, 47%)
CMYK	cmyk(77.7%, 41.3%, 0%, 52.5%)
CIE-LAB	lab(29.71, 3.75, -32.84)
CIE-LCH	lch(29.71, 33.05, 276.52°)
OKLab	oklab(39.48% -0.0271 -0.0937)
OKLCH	oklch(39.48% 0.098 253.9)
XYZ	xyz(6.1551, 6.1193, 18.9422)
Luminance	0.0612 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4779 #794D1B

analogous

#1B7679 #1B4779 #1E1B79

triadic

#1B4779 #791B47 #47791B

tetradic

#1B4779 #791B76 #794D1B #1B791E

square

#1B4779 #791B76 #794D1B #1B791E

split-complementary

#1B4779 #791E1B #76791B

monochromatic

#060F19 #102A47 #1B4779 #2664AB #3B82D3

Accessibility & contrast

On white

9.44

#1B4779 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#1B4779 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4779

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4779	#FFFFFF	#000000	##FFFFFF
##1B4779	1.00	9.44	2.22	9.44
#FFFFFF	9.44	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4B7B

Deuteranopia (green-blind)

#204278

Tritanopia (blue-blind)

#00535A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1b4779;
/* rgb */ color: rgb(27, 71, 121);
/* oklch */ color: oklch(39.5% 0.098 253.9);

Tailwind

colors: {
  custom: {
    50: '#6679a0',
    500: '#1b4779',
    950: '#000000',
  },
}

SCSS

$custom: #1b4779;
$custom-light: #6679a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4779",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 121
  },
  "hsl": {
    "h": 211.915,
    "s": 63.514,
    "l": 29.02
  },
  "oklch": {
    "l": 0.39476,
    "c": 0.09756,
    "h": 253.9
  },
  "luminance": 0.0612
}

Semantic roles & 50–950 ramp

primary

#1B4779

secondary

#AD7B43

accent

#9941E7

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1B4779

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

Preview Lab → · Contrast checker → · Palette generator →