#1B4A76#1B4A76

#1B4A76 is a dark, moderate cyan. Relative luminance 0.064; OKLCH L 40.0% C 0.090 H 249.9°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#1B4A76
RGB	rgb(27, 74, 118)
HSL	hsl(209, 63%, 28%)
HSV	hsv(209, 77%, 46%)
CMYK	cmyk(77.1%, 37.3%, 0%, 53.7%)
CIE-LAB	lab(30.49, 0.55, -29.72)
CIE-LCH	lch(30.49, 29.72, 271.06°)
OKLab	oklab(40.03% -0.0309 -0.0845)
OKLCH	oklch(40.03% 0.09 249.9)
XYZ	xyz(6.1696, 6.4379, 18.0535)
Luminance	0.0644 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4A76 #76471B

analogous

#1B7674 #1B4A76 #1B1C76

triadic

#1B4A76 #761B4A #4A761B

tetradic

#1B4A76 #741B76 #76471B #1C761B

square

#1B4A76 #741B76 #76471B #1C761B

split-complementary

#1B4A76 #761B1C #76741B

monochromatic

#061019 #102B44 #1B4A76 #2669A8 #3A88D2

Accessibility & contrast

On white

9.18

#1B4A76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#1B4A76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4A76

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4A76	#FFFFFF	#000000	##FFFFFF
##1B4A76	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#364C78

Deuteranopia (green-blind)

#284475

Tritanopia (blue-blind)

#00545A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1b4a76;
/* rgb */ color: rgb(27, 74, 118);
/* oklch */ color: oklch(40.0% 0.090 249.9);

Tailwind

colors: {
  custom: {
    50: '#657c9e',
    500: '#1b4a76',
    950: '#000000',
  },
}

SCSS

$custom: #1b4a76;
$custom-light: #657c9e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4a76",
  "rgb": {
    "r": 27,
    "g": 74,
    "b": 118
  },
  "hsl": {
    "h": 209.011,
    "s": 62.759,
    "l": 28.431
  },
  "oklch": {
    "l": 0.40029,
    "c": 0.09001,
    "h": 249.9
  },
  "luminance": 0.06439
}

Semantic roles & 50–950 ramp

primary

#1B4A76

secondary

#AA7542

accent

#9142E6

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1B4A76

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

Preview Lab → · Contrast checker → · Palette generator →