#1B4D7A#1B4D7A

#1B4D7A is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 41.0% C 0.092 H 249.2°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#1B4D7A
RGB	rgb(27, 77, 122)
HSL	hsl(208, 64%, 29%)
HSV	hsv(208, 78%, 48%)
CMYK	cmyk(77.9%, 36.9%, 0%, 52.2%)
CIE-LAB	lab(31.68, 0.17, -30.33)
CIE-LCH	lch(31.68, 30.33, 270.32°)
OKLab	oklab(41.04% -0.0328 -0.0863)
OKLCH	oklch(41.04% 0.092 249.2)
XYZ	xyz(6.6174, 6.9451, 19.4004)
Luminance	0.0695 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4D7A #7A481B

analogous

#1B7A78 #1B4D7A #1B1E7A

triadic

#1B4D7A #7A1B4D #4D7A1B

tetradic

#1B4D7A #781B7A #7A481B #1E7A1B

square

#1B4D7A #781B7A #7A481B #1E7A1B

split-complementary

#1B4D7A #7A1B1E #7A781B

monochromatic

#061019 #102D48 #1B4D7A #266DAC #3C8CD4

Accessibility & contrast

On white

8.79

#1B4D7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1B4D7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4D7A

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4D7A	#FFFFFF	#000000	##FFFFFF
##1B4D7A	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#384F7C

Deuteranopia (green-blind)

#2A4779

Tritanopia (blue-blind)

#00585D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1b4d7a;
/* rgb */ color: rgb(27, 77, 122);
/* oklch */ color: oklch(41.0% 0.092 249.2);

Tailwind

colors: {
  custom: {
    50: '#667ea0',
    500: '#1b4d7a',
    950: '#000000',
  },
}

SCSS

$custom: #1b4d7a;
$custom-light: #667ea0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4d7a",
  "rgb": {
    "r": 27,
    "g": 77,
    "b": 122
  },
  "hsl": {
    "h": 208.421,
    "s": 63.758,
    "l": 29.216
  },
  "oklch": {
    "l": 0.41037,
    "c": 0.0923,
    "h": 249.2
  },
  "luminance": 0.06946
}

Semantic roles & 50–950 ramp

primary

#1B4D7A

secondary

#AE7643

accent

#9041E7

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#06090F

muted

#7A7B7E

Preview Lab

Preview with #1B4D7A

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

Preview Lab → · Contrast checker → · Palette generator →