#1B549B#1B549B

#1B549B is a dark, vivid cyan. Relative luminance 0.089; OKLCH L 45.0% C 0.130 H 256.1°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#1B549B
RGB	rgb(27, 84, 155)
HSL	hsl(213, 70%, 36%)
HSV	hsv(213, 83%, 61%)
CMYK	cmyk(82.6%, 45.8%, 0%, 39.2%)
CIE-LAB	lab(35.87, 8.77, -43.86)
CIE-LCH	lch(35.87, 44.73, 281.31°)
OKLab	oklab(44.95% -0.0311 -0.1259)
OKLCH	oklch(44.95% 0.13 256.1)
XYZ	xyz(9.5365, 8.9391, 32.2268)
Luminance	0.0894 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B549B #9B621B

analogous

#1B949B #1B549B #221B9B

triadic

#1B549B #9B1B54 #549B1B

tetradic

#1B549B #9B1B94 #9B621B #1B9B22

square

#1B549B #9B1B94 #9B621B #1B9B22

split-complementary

#1B549B #9B221B #949B1B

monochromatic

#091C33 #123867 #1B549B #2470CF #5090E0

Accessibility & contrast

On white

7.53

#1B549B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#1B549B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B549B

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B549B	#FFFFFF	#000000	##FFFFFF
##1B549B	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5B9E

Deuteranopia (green-blind)

#114F9A

Tritanopia (blue-blind)

#006570

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1b549b;
/* rgb */ color: rgb(27, 84, 155);
/* oklch */ color: oklch(45.0% 0.130 256.1);

Tailwind

colors: {
  custom: {
    50: '#6e83b9',
    500: '#1b549b',
    950: '#000000',
  },
}

SCSS

$custom: #1b549b;
$custom-light: #6e83b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b549b",
  "rgb": {
    "r": 27,
    "g": 84,
    "b": 155
  },
  "hsl": {
    "h": 213.281,
    "s": 70.33,
    "l": 35.686
  },
  "oklch": {
    "l": 0.44952,
    "c": 0.12966,
    "h": 256.1
  },
  "luminance": 0.0894
}

Semantic roles & 50–950 ramp

primary

#1B549B

secondary

#C38F4F

accent

#9E3BED

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1B549B

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

Preview Lab → · Contrast checker → · Palette generator →